Don't raise your voice, improve your argument.

Criticize the act, not the person.

A friend to all is a friend to none

Let him who would move the world first move himself.

Do not say a little in many words, but a great deal in few!

Those who see the invisible can do the impossible.

Power always thinks it has a great soul and vast views beyond the comprehension of the weak.

The first method for estimating the intelligence of a ruler is to look at the men he has around him.

The impossible could not have happened, therefore the impossible must be possible in spite of appearances.

To be wronged is nothing unless you continue to remember it.

None but ourselves can free our minds.

If I speak of myself in different ways, that is because I look at myself in different ways.

Nothing fixes a thing so intensely in the memory as the wish to forget it.

A good teacher protects his pupils from his own influence.

Be realistic: Plan for a miracle

There is geometry in the humming of the strings. There is music in the spacing of the spheres.

Each day is a little life; every waking and rising a little birth; every fresh morning a little youth; every going to rest and sleep a little death.

If you're happy, don't worry you'll get over it.

A single lie destroys a whole reputation of integrity.

One new feature or fresh take can change everything.

In any moment of decision, the best thing you can do is the right thing. The worst thing you can do is nothing.