“The powers of a man's mind are directly proportioned to the quantity of coffee he drinks.”

“For extending its sway, partly by force of arms, partly by the voluntary submission of weaker tribes, the community soon acquires wealth and slaves, both of which, by relieving some classes from the perpetual struggle for a bare subsistence, afford them an opportunity of devoting themselves to that disinterested pursuit of knowledge which is the noblest and most powerful instrument to ameliorate the lot of man.”

“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.”

“Small minds cannot grasp great ideas; to their narrow comprehension, their purblind vision, nothing seems really great and important but themselves.”

“The really happy person is the one who can enjoy the scenery, even when they have to take a detour.”

“If you cannot teach me to fly, teach me to sing.”

“The universe looks more and more like a great thought rather than a great machine.”