"The past is always tense, the future perfect."

量子场论的发展表明，真空不是空的，而是充满了虚粒子。

Start with what is right rather than what is acceptable.

The most important thing in life is to stop saying 'I wish' and start saying 'I will.'

问题不在于事物是否存在，而在于它是否具有能够在没有我们的情况下存在的本质。