"You can't go back and change the beginning, but you can start where you are and change the ending."
人生是一系列的选择,而最难的那些才是最重要的。
写作是一种理解世界和我在其中位置的方式。
Randomized evaluations can help us understand what works and what doesn't in development.
我不是完美主义者,但我喜欢把事情做好。