Paul Oppenheimer

“No man is an island, entire of itself; every man is a piece of the continent, a part of the main. If a clod be washed away by the sea, Europe is the less, as well as if a promontory were, as well as if a manor of thy friend's or of thine own were: any man's death diminishes me, because I am involved in mankind, and therefore never send to know for whom the bells tolls; it tolls for thee.”
― John Donne, No man is an island – A selection from the prose

“Worse than not realizing the dreams of your youth would be to have been young and never dreamed at all.”
― Jean Genet

“No sane person should believe that something is subjective merely because it cannot be settled beyond controversy.”
― Hilary Putnam

“Nobody ever figures out what life is all about, and it doesn't matter. Explore the world. Nearly everything is really interesting if you go into it deeply enough.”
― Richard P. Feynman