最好的学习方法就是实践。
The best way to learn is by doing.
The only thing that is under control is your effort.
People are not lazy. They simply have impotent goals – that is, goals that do not inspire them.
追求真理需要相当大的努力，这就是为什么只有很少人愿意出于对知识的热爱而去追求真理，尽管上帝在人的心灵中植入了对这种知识的自然渴望。