Those who dare to fail miserably can achieve greatly.
There are risks and costs to action. But they are far less than the long range risks of comfortable inaction.
We must use time as a tool, not as a couch.
The greater our knowledge increases the more our ignorance unfolds.
In the long history of the world, only a few generations have been granted the role of defending freedom in its hour of maximum danger. I do not shrink from this responsibility -- I welcome it.
The goal of education is the advancement of knowledge and the dissemination of truth.
Physical fitness is not only one of the most important keys to a healthy body, it is the basis of dynamic and creative intellectual activity.
Change is the law of life. And those who look only to the past or present are certain to miss the future.