“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.”

Width of life is more important than length of life.

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.

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?

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

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.

A bank is a place where they lend you an umbrella in fair weather and ask for it back when it begins to rain.

Love makes everything complicated, and emotions always go wild in the beginning. But when it’s real, you should hold on tight.

Yesterday is gone. Tomorrow has not yet come. We have only today. Let us begin.

A man’s real education begins after he has left school. True education is gained through the discipline of life.

In the beginning of a change the patriot is a scarce man, and brave, and hated and scorned. When his cause succeeds, the timid join him, for then it costs nothing to be a patriot.

We are beginning to see the influence of dream upon reality and reality upon dream.

It all begins with forgiveness, because to heal the world, we first have to heal ourselves.

We all make mistakes, and it is better to make them before we begin.