“Your enemies can kill you, but only your friends can hurt you.”

In times of war, the law falls silent.

A mind without instruction can no more bear fruit than can a field, however fertile, without cultivation.

It is not by muscle, speed, or physical dexterity that great things are achieved, but by reflection, force of character, and judgment.

What can be more delightful than to have some one to whom you can say everything with the same absolute confidence as to yourself?

Life is nothing without friendship.

Gratitude is not only the greatest of virtues, but the parent of all others.

The wise are instructed by reason, average minds by experience, the stupid by necessity and the brute by instinct.

To study philosophy is nothing but to prepare one’s self to die.

No power on earth, if it labours beneath the burden of fear, can possibly be strong enough to survive.

He only employs his passion who can make no use of his reason.

To teach is a necessity, to please is a sweetness, to persuade is a victory.

Nobody can give you wiser advice than yourself: if you heed yourself, you’ll never go wrong.

Knowledge which is divorced from justice may be called cunning rather than wisdom.

If you have no confidence in self, you are twice defeated in the race of life. With confidence, you have won even before you have started.

What is sweeter than lettered ease?

Though silence is not necessarily an admission, it is not a denial, either.

Friends show me what I can do, foes teach me what I should do.

As freely as the firmament embraces the world, or the sun pours forth impartially his beams, so mercy must encircle both friend and foe.

Remove advertising, disable a person or firm from proclaiming its wares and their merits, and the whole of society and of the economy is transformed. The enemies of advertising are the enemies of freedom.

Advertising people who ignore research are as dangerous as generals who ignore decodes of enemy signals.

People crushed by law, have no hopes but from power. If laws are their enemies, they will be enemies to laws; and those who have much hope and nothing to lose, will always be dangerous.

The idea is that that there is no such thing as an external enemy.

O my Lord, whatever share of this world You have bestowed on me, bestow it to my enemies, and whatever share of the next world You have for me, give it to my friends. You are enough for me.

Love your enemies and hate your friends, your enemies remain the same your friends always change.