我总是很高兴地想到，我的教育大部分是非正式的，并且根植于土壤之中。

We must be vigilant and resolutely fight against all enemies, both internal and external.

The most important challenge facing the world today is the need to create strong, effective, and accountable states in the developing world.

忧心生时，你即受其所役。

Patience is key in observational astronomy—some discoveries take decades to confirm.

翻译：遏止邪恶而弘扬善行，顺从天意而赞美生命。

逝者是我们寻求真理的沉默伙伴。