"The future of civilization depends on our ability to acquire a broader outlook and a more generous spirit."

"The most tragic thing in the world is a man of genius who is not a man of character."

"Constant kindness can accomplish much. As the sun makes ice melt, kindness causes misunderstanding, mistrust, and hostility to evaporate."

"Man has lost the capacity to foresee and to forestall. He will end by destroying the earth."

"The greatest thing a man can do is to seek the truth."