The ancients considered mechanics in a twofold respect: as rational, which proceeds accurately by demonstration, and practical. To practical mechanics all the manual arts belong, from which mechanics took its name.

Organized murder is war, and though we demonstrate against a particular war, the nuclear, or any other kind of war, we have never demonstrated against war.

Smiling is very important. If we are not able to smile, then the world will not have peace. It is not by going out for a demonstration against nuclear missiles that we can bring about peace. It is with our capacity of smiling, breathing, and being peace that we can make peace.

You have to look for teachers. If you want to be a mechanic, go hang out with mechanics.

All the interests of my reason, speculative as well as practical, combine in the three following questions: 1. What can I know? 2. What ought I to do? 3. What may I hope?

The best way to enhance freedom in other lands is to demonstrate here that our democratic system is worthy of emulation.

Persuasion is clearly a sort of demonstration, since we are most fully persuaded when we consider a thing to have been demonstrated.

Some of our earliest writing, in cuneiform, was about who owes what.

Music, even with these dial-up connections you have to the Internet, is very practical to download.

The United States was seriously defeated in Iraq by Iraqi nationalism – mostly by nonviolent resistance. The United States could kill the insurgents, but they couldn’t deal with half a million people demonstrating in the streets.

Resistance is usually ascribed to bodies at rest, and impulse to those in motion, but motion and rest, as commonly conceived, are only relatively distinguished; nor are those bodies always truly at rest, which commonly are taken to be so.

The spiritual is the parent of the practical.

Myths can’t be translated as they did in their ancient soil. We can only find our own meaning in our own time.

The most practical kind of politics is the politics of decency.

Chance is an element of life. What I try to do is study what I call the mechanics of reality as carefully as I can.

I have often thought that if a rational Fascist dictatorship were to exist, then it would choose the American system.

Let me show you how it’s done… Loser!

Society therefore is as ancient as the world.

Divorce is probably of nearly the same date as marriage. I believe, however, that marriage is some weeks the more ancient.

You have a row of dominoes set up; you knock over the first one, and what will happen to the last one is that it will go over very quickly.

Peoples do not defy repression and death, nor do they remain for nights on end protesting energetically, just because of merely formal matters.

I have already demonstrated, by crucial tests, the practicability of signaling by my system from one to any other point of the globe, no matter how remote, and I shall soon convert the disbelievers.

Life is very difficult. One of the most ancient of religious ideas that emerges everywhere, I would say, is that life is essentially suffering.

Demonstrate to the world, there is ‚No Better Friend, No Worse Enemy‘ than a U.S. Marine.

An object in motion tends to remain in motion along a straight line unless acted upon by an outside force.

The description of right lines and circles, upon which geometry is founded, belongs to mechanics. Geometry does not teach us to draw these lines, but requires them to be drawn.

It is better to imitate ancient than modern work.

Politics is a science. You can demonstrate that you are right and that others are wrong.

There’s the chaos surrounding the practical day-to-day – playdates, doctors‘ appointments, packing and unpacking, and organizing mealtimes.