我已将这一原则——每一微小变异若有益便被保存——称为自然选择。
I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection.
具体艺术家努力以最精确和客观的形式表达精神。
科学因怀疑和质疑而繁荣。
You cannot always control what goes on outside, but you can always control what goes on inside.
