Maimonides

The greatest evil that can befall men is that they should consider themselves as perfect.

The physician should not treat the disease but the patient who has the disease.

Man's generally accepted view is that good is all that is pleasant to him, and evil is all that is unpleasant to him.

One should not consider as a defect the fact that the Torah provides for the well-being of the body, as it provides for the well-being of the soul.

The greater the truth, the greater the libel.

It is not the eye that sees, but the soul that sees through the eye.

Truth does not become more true by virtue of the fact that the entire world agrees with it, nor less so even if the entire world disagrees with it.

The aim of the law is to make man perfect, and it is impossible for man to be perfect so long as his mind is not perfect.

The object of the study of the Torah is the removal of evil opinions and the acquisition of correct opinions.

The risk of a wrong decision is preferable to the terror of indecision.

The highest degree of love for God consists in occupying oneself with His law, not for the sake of reward, but for the sake of the love itself.

The more necessary a thing is for the preservation of man, the more it is known to all.

The greatest disease is ignorance.

The intellect is the highest part of man.

There is no more excellent quality for man than humility.

The wise man should not be ashamed to confess that he does not know what he does not know.

The physician must be able to discern the state of health of a person from his speech, his gait, his sleep, his dreams, his appetite, his thirst, his excretions, and his thoughts.

The true perfection of man is to attain to the knowledge of God.

The knowledge of God is not acquired by speculation, but by the study of His works.

The human intellect is a part of the divine emanation which is united with man.