Mental processes evolved to solve practical problems.
心理过程进化是为了解决实际问题。
穷人不仅仅是消极的受害者；他们是试图在艰难世界中航行的积极行动者。
"Education is the kindling of a flame, not the filling of a vessel."
In mathematics, persistence is often more important than brilliance.
过去是一个异国他乡；他们在那里行事不同。
人类本性中最深层的原则是渴望被欣赏。