The concept of a black hole firewall challenges our understanding of quantum mechanics and general relativity.

创造性力量很容易变成破坏性力量。这只取决于人们的道德人格：是用此力量做好事或做坏事。如果人们缺乏这种道德人格，则没有一种说教能够提供它或取而代之。

"The future is not a place we are going, but a place we are creating."

The world is my country, all mankind are my brethren, and to do good is my religion.

I'm not afraid of storms, for I'm learning how to sail my ship.

I believe it's essential to understand the psychology of the market and the psychology of the investor.

"The world is full of magic things, patiently waiting for our senses to grow sharper."