Aristotle Words Quotations

It is clear, then, that wisdom is knowledge having to do with certain principles and causes. But now, since it is this knowledge that we are seeking, we must consider the following point: of what kind of principles and of what kind of causes is wisdom the knowledge?

...The entire preoccupation of the physicist is with things that contain within themselves a principle of movement and rest.

... There must then be a principle of such a kind that its substance is activity.

Demonstration is also something necessary, because a demonstration cannot go otherwise than it does, ... And the cause of this lies with the primary premises/principles.

... a science must deal with a subject and its properties.

... the science we are after is not about mathematicals either none of them, you see, is separable.

But also philosophy is not about perceptible substances they, you see, are prone to destruction.

Metaphysics involves intuitive knowledge of unprovable starting-points concepts and truth and demonstrative knowledge of what follows from them.

The life of theoretical philosophy is the best and happiest a man can lead. Few men are capable of it and then only intermittently. For the rest there is a second-best way of life, that of moral virtue and practical wisdom.