释义：随随便便交一些不好的朋友，还不如整天读书更好。
The spread of liberal democracy and the integration of the world economy have created a situation in which the major powers are no longer willing to risk war with one another.
我总是尊重对手，因为他们让我变得更好。
A tranquil mind is the source of health.
每一天都是改变生活的新机会。
我们都在阴沟里，但仍有人仰望星空。
"Behavior cannot be divorced from its adaptive context."