Law is order in liberty, and without order liberty is social chaos.

"Terrorism" is what we call the violence of the weak, and we condemn it; "war" is what we call the violence of the strong, and we glorify it.

The best combination of parents consists of a father who is gentle beneath his firmness, and a mother who is firm beneath her gentleness.

Good teaching must be slow enough so that it is not confusing, and fast enough so that it is not boring.

The pessimist sees only the tunnel; the optimist sees the light at the end of the tunnel; the realist sees the tunnel and the light - and the next tunnel.

The greatest educational dogma is also its greatest fallacy: the belief that what must be learned can necessarily be taught.

The greatest enemy of progress is not stagnation, but false progress.