“As to the mental essence, we find it in infants devoid of every mental form.”

The more brilliant the lightning, the quicker it disappears.

Leeches should be kept a day before applying them. They should be squeezed to make them eject the contents of their stomachs.

There are no incurable diseases – only the lack of will. There are no worthless herbs – only the lack of knowledge.

I [prefer] a short life with width to a narrow one with length.

In God alone, essence (what He is) and existence (that he is) coincide.

An ignorant doctor is the aide-de-camp of death.

Now it is established in the sciences that no knowledge is acquired save through the study of its causes and beginnings, if it has had causes and beginnings; nor completed except by knowledge of its accidents and accompanying essentials.

It is in the nature of water … to become transformed into earth through a predominating earthy virtue; … it is in the nature of earth to become transformed into water through a predominating aqueous virtue.

Is it the fault of wine if a fool drinks it and goes stumbling into darkness?

The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes.

When you do not know the nature of the malady, leave it to nature; do not strive to hasten matters. For either nature will bring about the cure or it will itself reveal clearly what the malady really is.

The different sorts of madness are innumerable.

That whose existence is necessary must necessarily be one essence.

Those who deny the first principle should be flogged or burned until they admit that it is not the same thing to be burned and not burned, or whipped and not whipped.

A horse is simply a horse.

Medicine considers the human body as to the means by which it is cured and by which it is driven away from health.

However, if the religions in essence merely repeat statements from the United Nations Human Rights Declaration, such a Declaration becomes superfluous; an ethic is more than rights.

The essence of leadership is building bonds of trust in your organization.

The essence of all art is to have pleasure in giving pleasure.

The essence of tyranny is the enforcement of stupid laws.

The essence of strategy is choosing what not to do.

Trust is the essence of Leadership.

The true essence of a dictatorship is in fact not its regularity but its unpredictability and caprice; those who live under it must never be able to relax, must never be quite sure if they have followed the rules correctly or not.

Don’t forget who you are and where you come from.