有时你必须在内心经历某种死亡，才能从自己的灰烬中重生，相信自己，爱自己，成为一个新的人。
The concept of a black hole firewall challenges our understanding of quantum mechanics and general relativity.
解释：辅与车互相依存，嘴唇没有了，牙齿就要受寒。
The true investor scarcely ever is forced to sell his shares, and at all other times he is free to disregard the current price quotation.
The first lesson of economics is scarcity: There is never enough of anything to satisfy all those who want it. The first lesson of politics is to disregard the first lesson of economics.