Eternal truths will be neither true nor eternal unless they have fresh meaning for every new social situation .
永恒的真理假如不在新的社会形势下赋予新的意义,要么就不是真理,要么就不是永恒的。
Histories make men wise ; poems witty1; the mathematics subtle; natural philosophy deep ; moral grave ; logic2 and rhetoric3 able to contend .
历史使人明智；诗词使人灵秀；数学使人周密；自然哲学使人深刻；伦理使人庄重；逻辑修辞学使人善辨。
If you don't learn to think when you are young , you may never learn .
假如你年轻时就没掌握考虑，那样就永远学不会考虑。
Natural abilities are like natural plants that need pruning4 by study.
天生的才干好似天生的植物一样，需要靠学习来修剪。