Success is not final, failure is not fatal: It is the courage to continue that counts.

数学的本质在于它的自由。

It is better by noble boldness to run the risk of being subject to half of the evils we anticipate than to remain in cowardly listlessness for fear of what might happen.

当年龄低估年轻人时，它既愚蠢又健忘。

Little else is requisite to carry a state to the highest degree of opulence from the lowest barbarism but peace， easy taxes， and a tolerable administration of justice.

出自汉·桓宽《盐铁论·力耕》。非，不是。宝，这句话指好的办法。道，途径、方法。治家并不是只有一种有效的方法，治国并不是只有一条可行的途径。这句话言治家与治国一样，都有许多不同的方法，当事人应当努力寻求，不必因循守旧而无所作为。