The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.
数学家研究纯数学不是因为它有用;他研究它是因为他喜欢它,他喜欢它是因为它美丽。
心理学的研究必须包括对心灵运作环境的研究。
当我29岁时,我告诉自己,无论下份工作薪水如何,我将从现在起,做一个职业演员。
释义:擅长游泳的人容易溺水,擅长骑马的人容易摔跤。
The essence of a free government consists in an effectual control of rivalries.