如果一个人从确定性开始，最终将陷入怀疑；但如果他愿意从怀疑开始，最终将得到确定性。
If a man will begin with certainties， he shall end in doubts； but if he will be content to begin with doubts， he shall end in certainties.
自动控制的艺术在于正确调整修正力。
That is what learning is. You suddenly understand something you've understood all your life, but in a new way.
The only real journey is the one within.
Disciplining yourself to do what you know is right and important, although difficult, is the highroad to pride, self-esteem, and personal satisfaction.