杂交的发展遵循一个恒定的规律。

I'm the reason your dark won't fade.

International politics is a ruthless and dangerous business, and it is foolish to expect states to behave according to moral principles.

The real voyage of discovery consists not in seeking new landscapes, but in having new eyes.

"The best leaders are those who develop other leaders."

理解计算的限制与理解计算的能力同样重要。