The world is a stage, but the play is badly cast.

学习数学的唯一方法就是做数学。

The energy transition won't happen overnight, but we must be ready to lead through it.

今天很残酷，明天更残酷，后天很美好。

He allowed himself to be swayed by his conviction that human beings are not born once and for all on the day their mothers give birth to them, but that life obliges them over and over again to give birth to themselves.

The decisions of the poor are often heartbreakingly rational.

Leadership means making tough decisions today that will benefit generations tomorrow.

"The only way out is through."