Never underestimate the power of small, consistent improvements.
Mathematics is the language in which the universe is written.
Change the way you look at things and the things you look at change.
Sustainability isn't an option; it's a responsibility.
只有通过观察自己的行为,你才能发现自己真正相信什么(而不是你认为自己相信什么)。在此之前,你根本不知道自己相信什么。你太复杂了,无法理解自己。