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

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.

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.

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

The wisdom that comes from being conscious of the real threats to you and your mission will sharpen your deliberateness in decision & choice-making, associations and positioning.

If a man would move the world he must first move himself.

When we as a society lose the ability to comment on what we see and to have an opinion on what we are exposed to, then we have all lost what makes us unique on this planet.

It is unity that doth enchant me. By her power I am free though thrall, happy in sorrow, rich in poverty, and quick even in death.

Twitter has been my life's work in many senses. It started with a fascination with cities and how they work, and what's going on in them right now.

Happy contractedness of youth, nay, of mankind in general, that they think neither of the high nor the deep, of the true nor the false, but only of what is suited to their own conceptions.

When I was younger, my feet would hurt a lot, but you build up calluses and strength and you don't feel as much pain there.

I'm happy whenever anybody does my material. I don't care what they do with it. I do what I want to with other people's songs.

If evil is contagious, so is good:therefore, we must allow good to abound in us, more and more;let us be infected by goodness, and let us spread the good contagion.

Right joyous are we to behold your face, Most worthy brother England; fairly met!