Intelligence is the wife, imagination is your mistress and memory is your slave.

“two principal problems. First problem: To produce wealth. Second problem: To di…”

“Love is like a tree: it grows by itself, roots itself deeply in our being and c…”

“The supreme happiness of life consists in the conviction that one is loved; lov…”

“Die Wissenschaft muss mit glatten Wangen begonnen werden und nicht erst mit run…”