Aristotle

The growth of animals is a process of assimilation.

The senses are the primary source of all our knowledge.

The soul is immortal.

The study of nature reveals the wisdom of the creator.

The physician must be skilled in diagnosis.

The body is a complex organization.

The generation of animals is a natural process.

The senses are the foundation of all our understanding.

The soul is the form of the body.

The study of nature is a source of endless fascination.

Nature does nothing in vain.

In all things of nature there is something of the marvelous.

The whole is more than the sum of its parts.

We are what we repeatedly do. Excellence, then, is not an act, but a habit.

Knowing yourself is the beginning of all wisdom.

It is the mark of an educated mind to be able to entertain a thought without accepting it.

Happiness depends upon ourselves.

The aim of the wise is not to secure pleasure, but to avoid pain.

Those who educate children well are more to be honored than they who produce them; for these only gave them life, those the art of living well.

The roots of education are bitter, but the fruit is sweet.