To fight against one's desires is the greatest of all fights.

Know thyself, and thou shalt know God.

There is no rest for the person who has envy, and there is no love for the person who has bad manners.

When proven wrong, the wise man will correct himself and the ignorant will keep arguing.

He who understands humanity seeks solitude

Whoever desires Paradise, proceeds towards goodness; whoever fears Hell, refrains from the impulses of passions; whoever believes firmly in death, detests wordly life; and whoever recognises the worldly life, the trials and tribulations (of life) become slight for him.

Do not be like those on whom advice has no effect and who require punishment to correct themselves.