Whatever exists at all exists in some amount. To know it thoroughly involves knowing its quantity as well as its quality.

Colors fade, temples crumble, empires fall, but wise words endure.

Just as the science and art of agriculture depend upon chemistry and botany, so the art of education depends upon physiology and psychology.

Amongst the minds of animals that of man leads, not as a demigod from another planet, but as a king from the same race.

Psychology is the science of the intellects, characters and behavior of animals including man.

Human education is concerned with certain changes in the intellects, characters and behavior of men, its problems being roughly included under these four topics: Aims, materials, means and methods.

All that exists, exists in some amount and can be measured.

He who learns and runs away, lives to learn another day.

Nowhere more truly than in his mental capacities is man a part of nature.

The intellectual evolution of the race consists in an increase in the number, delicacy, complexity, permanence and speed of formation of such associations.

The dog, on the other hand, has few or no ideas because his brain acts in coarse fashion and because there are few connections with each single process.

In the process of looking at broken paths, we often forget the lights that illuminates that path.

Everything’s possible and nothing’s not.

The open road still softly calls, like a nearly forgotten song of childhood

All writers behave badly. All people behave badly.

The circle of an empty day is brutal and at night it tightens around your neck like a noose

Above us, the wind blew and the branching shadows rearranged themselves on our skin. Gus squeezed my hand. "It is a good life, Hazel Grace.

I've never been disappointed by politicians. I've never invested that much in them in the first place.

Everybody is trying to be perfect. And the moment somebody starts trying to be perfect, he starts expecting everybody else to be perfect. He starts condemning people, he starts humiliating people.

If we should die trying to live, at least we live like human beings.

It may be that when we no longer know what to do, we have come to our real work, and that when we no longer know which way to go, we have begun our real journey.