自动控制的艺术在于正确调整修正力。
In mathematics, the art of proposing a question must be held of higher value than solving it.
数学的美在于它能够用一种超越文化和语言障碍的语言来描述宇宙。
Drawing for children is about capturing the essence, not the detail.
The advancement of robot technology is to make human life better.