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