No man should judge unless he asks himself in absolute honesty whether in a similar situation he might not have done the same.
For every dollar you spend purchasing something substantial， expect to pay a dollar in repairs， maintenance， or disposal by the end of its life.
Happiness is not something you postpone for the future; it is something you design for the present.
做伟大工作的唯一方法就是热爱你所做的事情。如果你还没有找到它，继续寻找。不要满足。
The greatest disability is a bad attitude.