我不会让消极情绪偷走我的快乐。
The tears of the world are a constant quantity. For each one who begins to weep, somewhere else another stops. The same is true of the laugh.
Silence remains, inescapably, a form of speech.
知识的唯一来源是经验。
科学以冒险的精神前进,总是寻求未知。
The truth is, the world is so constructed that if you wish to enjoy its fruits, you must submit to its rules.