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。

长江后浪推动前浪，世上新人层出不穷。

Singing is my way of expressing emotions, I hope the audience can feel my sincerity.

Suffering! We owe to it all that is good in us, all that gives value to life; we owe to it pity, we owe to it courage, we owe to it all the virtues.

条件作用原理同样适用于所有物种。

You have to think for yourself. It always amazes me how high-IQ people mindlessly imitate. I never get good ideas talking to other people.