免疫系统就像一把双刃剑；它可以对抗癌症，但也需要被控制。
"The immune system is like a double-edged sword; it can fight cancer but also needs to be controlled."
I think that one wants from painting a sense of life.
人类认知的力量来自于其概括的能力。
The only way to be happy is to be true to yourself.
The course of development consists simply in this; that in each generation the two parental traits appear, separated and unchanged.
花开时可以折取就要及时折取，不要等到花谢了只能折取空枝。