The only limits in life are the ones you set for yourself.

We are all in the gutter, but some of us are looking at the stars.

Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it.

The first step toward getting somewhere is to decide that you are not going to stay where you are.

人生的主要任务是诞生自己。

不要等待完美的时刻，抓住这一刻并让它变得完美。