The only limits you have are the limits you believe.
追求真理需要相当大的努力,这就是为什么只有很少人愿意出于对知识的热爱而去追求真理,尽管上帝在人的心灵中植入了对这种知识的自然渴望。
智者不会羞于求知,因为他知道,知识的海洋是无边无际的。
Human beings, viewed as behaving systems, are quite simple. The apparent complexity of our behavior over time is largely a reflection of the complexity of the environment in which we find ourselves.