学习的挑战不仅在于记忆，还在于从具体例子中归纳出更广泛的概念。

Randomized evaluations can help us understand what works and what doesn't in development.

The character of a building is determined by the way it is used, not by its appearance.

To exist is to have a subjective existence.

我相信音乐的力量可以治愈和激励人。

实现明天的唯一限制将是我们今天的疑虑。

我不知道未来会怎样，但我知道谁掌握着未来。