Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it.

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

技术可以成为我们在可持续森林管理中的最大盟友。

在探索理解量子引力的过程中，我们就像在广阔海洋岸边玩耍的孩子，偶尔发现一块光滑的鹅卵石或一个漂亮的贝壳，而真理的浩瀚海洋仍未被我们发现。

信仰是引导我穿越黑暗的光。