The course of human life is not determined by drives or environment alone, but by creative self-direction as well.
乐观主义者倾向于将他们的麻烦解释为暂时的、可控的和特定于一种情况的。另一方面，悲观主义者认为他们的麻烦会永远存在，破坏他们所做的一切，并且无法控制。
The stream of thought is the stream of life solving its problems.
The secret of change is to focus all of your energy，not on fighting the old，but on building the new.
改变的秘诀是集中你的所有能力，不是摧毁旧的，而是建造新的。
The beauty of the genetic code lies in its universality; it is shared by all known forms of life.
市场不能替代政府，政府也不能替代市场。