解释：德行不够优良的人，难以有崇高的信念与理想。才能不够突出的人，难以有渊博的知识和见解。
Change will lead to inspiration far more often than inspiration will lead to change.
伦理学的任务不仅是理解世界，而且是改变世界。
The mind is a product of evolution and learning.
The only service a friend can really render is to keep up your courage by holding up to you a mirror in which you can see a noble image of yourself.
