写作是一种自由的行为,是一种以其他方式无法表达的表达方式。
If you are born poor it's not your mistake, but if you die poor it's your mistake.
Courage is not the absence of fear, but the triumph over it.
在科学领域,我们必须准备好接受我们最珍视的理论有一天可能会被取代。