Sir James George Frazer

“For strength of character in the race as in the individual consists mainly in the power of sacrificing the present for the future, of disregarding the immediate temptations of ephemeral pleasure for more distant and lasting sources of satisfaction. The more the power is exercised the higher and stronger becomes the character; till the height of heroism is reached in men who renounce the pleasures of life and even life itself for the sake of winning for others, perhaps in distant ages, the blessings of freedom and truth.”
― Sir James George Frazer, The Golden Bough