Life is long if you know how to use it.
  如能善于利用,生命乃长。——Seneca

the GREatest friend of truth is time, her greatest enemy is prejudice, and her constant companion is humility.
  真理最伟大的朋友是时间,其最大的敌人是偏见,其永远的同伴是谦逊。——C. C

One must wait until the evening to see how splendid the day has been.
  直到夜幕降临,人们才知白昼的辉煌。 ——Sophocles

Smooth runs the water where the brook is deep.
  静水流深。——Shakespeare

What is a weed? —A plant whose virtues have not been discovered.
什么是杂草?——杂草是一种利用价值尚未被发现的植物。——Emerson

the man of science does not discover in order to know; he wants to know in order to discover.
  科学家并非为了知道什么而寻求发现;他们是为了有所发现而想知道什么。 ——A. N. Whitehead

Animals are such aGREeable friends—they ask no questions, they pass no criticisms.
  动物是如此怡人的朋友,它们不问任何问题,也不提出批评。——George Eliot

Heaven knows what seeming nonsense may not tomorrow be demonstrated truth.
  天知道今天看来是胡言乱语的东西明天会不会被证明是真理呢? ——A. N. Whitehead