Averroes (Ibn Rushd)

Medicine heals the body, philosophy heals the soul.

The pursuit of knowledge is a religious duty.

Error is the price we pay for truth.

The soul is immortal through its connection to the active intellect.

Justice is the foundation of society.

Contemplation is the highest form of worship.

The stars are not causes but signs.

Freedom of thought is essential for progress.

The unexamined life is not worth living.

God is the necessary existent.

Learning is a treasure that follows its owner everywhere.

The heart of the wise man is the abode of peace.

Dialectic is the path to certainty.

The body is the prison of the soul.

True knowledge comes from demonstration.

Tyranny is the worst form of government.

The mind is what it thinks.

Patience is the key to relief.

Astronomy reveals the order of the heavens.

Virtue is a habit, not an act.