The problem with the world is that the intelligent people are full of doubts, while the stupid ones are full of confidence.

绘画就是记住眼睛已经遗忘的东西

解释：君子使自己懂得那些重大而长远的事情，小人却只注意细小的、眼前的事情。

无限小在自然中的作用是无限大的。