“Regard as your most faithful friends, not those who praise everything you say or do, but those who criticize your mistakes.”

We should not call a city happy because it attracts masses of citizens from everywhere; a fortunate city is one in which the race of the original inhabitants is best preserved.

Oratory is good only if it has the qualities of fitness for the occasion, propriety of style, and originality of treatment, while in the case of letters there is no such need whatsoever.

I maintain, then, that we should make peace, not only with the Chians, the Rhodians, the Byzantines and the Coans, but with all mankind.

Whetstones are not themselves able to cut, but make iron sharp and capable of cutting.

Conduct yourself towards your parents as you would have your children conduct themselves towards you.

It is more important to know where you are going than to get there quickly. Do not mistake activity for achievement. Remember that there is nothing stable in human affairs, therefore avoid undue elation in prosperity or undue depression in adversity.

Always when you are about to say anything, first weigh it in your mind; for with many the tongue outruns the thought.

Consider that nothing in human life is stable; for then you will not exult overmuch in prosperity, nor grieve overmuch in adversity. Rejoice over the good things which come to you, but grieve in moderation over the evils which befall you.

Of all our possessions, wisdom alone is immortal.

But I marvel when I observe these men setting themselves up as instructors of youth who cannot see that they are applying the analogy of an art with hard and fast rules to a creative process

If you be a lover of instruction, you will be well instructed.

Guard yourself against accusations, even if they are false; for the multitude are ignorant of the truth and look only to reputation.

It is not fitting that the evil produced by men should be imputed to things; let those bear the blame who make an ill use of things in themselves good.

Spend your leisure time in cultivating an ear attentive to discourse, for in this way you will find that you learn with ease what others have found out with difficulty.

Be gracious to all men, but choose the best to be your friends.

If all who are engaged in the profession of education were willing to state the facts instead of making greater promises than they can possibly fulfill, they would not be in such bad repute with the lay- public.