The tears of the world are a constant quantity. For each one who begins to weep, somewhere else another stops. The same is true of the laugh.

The only true wisdom is in knowing you know nothing.

解释：高明的医生注重预防疾病，而不是等到疾病发生后再去治疗。

The most successful buildings are those that evolve over time to meet changing needs.

Speak confidently as if you are right， but listen carefully as if you are wrong.

A strong brand is built on consistency, integrity, and innovation.