Serdar

“Farm animals aren't the only ones that suffer at the hands of human beings. Scientists use animals for their research. It's not just rats and guinea pigs – cats, dogs, monkeys and even chimpanzees can be found in laboratories, many of them suffering pain and distress as they are drugged or given electric shocks. Singer's test to see if any research is morally acceptable is this: would we be prepared to perform the same experiment on a brain-damaged human being? If not, he believes, it is not right to perform the experiment on an animal with a similar level of mental awareness. This is a tough test, and not many experiments would pass it. In practice, then, Singer is very strongly against using animals in research. The”
― Nigel Warburton, A Little History of Philosophy

“In this short philosophical novel he completely undermined the kind of optimism about humanity and the universe that Pope and Leibniz had expressed, and he did it in such an entertaining way that the book became an instant bestseller. Wisely Voltaire left his name off the title page, otherwise its publication would have landed him in prison again for making fun of religious beliefs. Candide is the central character. His name suggests innocence and purity. At the start of the book, he is a young servant who falls hopelessly in love with his master's daughter, Cunégonde, but is chased out of her father's castle when he is caught in a compromising position with her. From then on, in a fast-moving and often fantastical tale, he travels through real and imaginary countries with his philosophy tutor Dr Pangloss, until he finally meets up with his lost love Cunégonde again, though by now she is old and ugly. In a series of comical episodes Candide and Pangloss witness terrible events and encounter a range of characters along the way, all of whom have themselves suffered terrible misfortunes. Voltaire uses the philosophy tutor, Pangloss, to spout a caricatured version of Leibniz's philosophy, which the writer then pokes fun at. Whatever happens, whether it is a natural disaster, torture, war, rape, religious persecution or slavery, Pangloss treats it as further confirmation that they live in the best of all possible worlds. Rather than causing him to rethink his beliefs, each disaster just increases his confidence that everything is for the best and this is how things had to be to produce the most perfect situation. Voltaire takes great delight in revealing Pangloss' refusal to see what is in front of him, and this is meant to mock Leibniz's optimism. But to be fair to Leibniz, his point wasn't that evil doesn't occur, but rather that the evil that does exist was needed to bring about the best possible world. It does, however, suggest that there is so much evil in the world that it is hardly likely that Leibniz was right – this can't be the minimum needed to achieve a good result. There is just too much pain and suffering in the world for that to be true. In”
― Nigel Warburton, A Little History of Philosophy

“Sartre explained what he meant by the anguish of choice through the true story of a student who had come to ask his advice during the war. This young man had to make a very difficult decision. He could either stay at home to look after his mother; or he could run off and try to join the French Resistance and fight to save his country from the Germans. This was the most difficult decision of his life and he wasn't sure what to do. If he left his mother, she would be vulnerable without him. He might not succeed in getting to the Resistance fighters before being caught by the Germans, and then the whole attempt to do something noble would be a waste of energy and of a life. But if he stayed at home with his mother, he'd be letting others do the fighting for him. What should he do? What would you do? What advice would you give him? Sartre's advice was a bit frustrating. He told the student that he was free and that he should choose for himself. If Sartre had given the student any practical advice about what to do, the student would still have had to decide whether or not to follow it. There is no way to escape the weight of responsibility that comes with being human.”
― Nigel Warburton, A Little History of Philosophy

“But the basis of Freud's ideas aren't accepted by all philosophers, though many accept that he was right about the possibility of unconscious thought. Some have claimed that Freud's theories are unscientific. Most famously, Karl Popper (whose ideas are more fully discussed in Chapter 36) described many of the ideas of psychoanalysis as ‘unfalsifiable’. This wasn't a compliment, but a criticism. For Popper, the essence of scientific research was that it could be tested; that is, there could be some possible observation that would show that it was false. In Popper's example, the actions of a man who pushed a child into a river, and a man who dived in to save a drowning child were, like all human behaviour, equally open to Freudian explanation. Whether someone tried to drown or save a child, Freud's theory could explain it. He would probably say that the first man was repressing some aspect of his Oedipal conflict, and that led to his violent behaviour, whereas the second man had ‘sublimated’ his unconscious desires, that is, managed to steer them into socially useful actions. If every possible observation is taken as further evidence that the theory is true, whatever that observation is, and no imaginable evidence could show that it was false, Popper believed, the theory couldn't be scientific at all. Freud, on the other hand, might have argued that Popper had some kind of repressed desire that made him so aggressive towards psychoanalysis. Bertrand”
― Nigel Warburton, A Little History of Philosophy