是故君子自难而易彼，众人自易而难彼。
所以君子严于律己、宽以待人，而平庸的人却宽以待己、严于律人。
儿童的进步不是取决于年龄，而是取决于能够自由地观看他周围的一切。
I'm a hopeless romantic and a passionate person when it comes to love.
Randomized evaluations can help us understand what works and what doesn't in development.
The real challenge is to make something complex appear simple.
数字世界应该对所有人开放，无论背景或能力。
当一件事有趣时，探寻其中隐藏的真相。
"Children deserve books that challenge them, not just entertain."
你无法改变过去，但你可以创造未来。