A sound mind in a sound body, is a short, but full description of a happy state in this World: he that has these two, has little more to wish for; and he that wants either of them, will be little the better for anything else. Men’s happiness or misery is most part of their own making. He, whose mind directs not wisely, will never take the right way; and he, whose body is crazy and feeble, will never be able to advance in it.
Life is about taking chances and going for it
数学是概念之间关系的科学,与内容无关。
Every tree we plant today is a legacy for tomorrow.
The future belongs to those who can harness energy wisely.
应对世界的唯一方法就是书写它。