自然的统一性不是假设而是事实。

The greatest weapon against stress is our ability to choose one thought over another.

What is most personal is most universal.

He allowed himself to be swayed by his conviction that human beings are not born once and for all on the day their mothers give birth to them, but that life obliges them over and over again to give birth to themselves.

人生苦短，必须快乐。