Writing is a way of preserving the ephemeral.
数学的本质在于它的自由。
Every mental state is a link in the chain of consciousness.
The danger of the past was that men became slaves. The danger of the future is that men may become robots.
Nature is a wonderful teacher, and if we will only be patient and observe, she will reveal her secrets to us.
To love is to risk, but it is a risk worth taking.