A mathematician's intuition is as important as rigorous proof.

The essence of modernity is psychologism, the experiencing and interpretation of the world in terms of the reactions of our inner life and indeed as an inward world.

你不会因为平凡而成为英雄。

趋势是你的朋友，直到它结束。

Our descendants will achieve thins that will amaze us, yet a portion of what they will create could have been made with today’s materials and tools if we had had the imagination. Think bigger.

What worries you, masters you.