A Quote by Aristotle

The proof that you know something is that you are able to teach it — © Aristotle
The proof that you know something is that you are able to teach it

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You can teach taste, editorial sense, but the ability to say something funny is something I've never been able to teach anyone.
A proof is a proof. What kind of a proof? It's a proof. A proof is a proof. And when you have a good proof, it's because it's proven.
I've been making a list of the things they don't teach you at school. They don't teach you how to love somebody. They don't teach you how to be famous. They don't teach you how to be rich or how to be poor. They don't teach you how to walk away from someone you don't love any longer. They don't teach you how to know what's going on in someone else's mind. They don't teach you what to say to someone who's dying. They don't teach you anything worth knowing.
I know my limitations. I know I'm not perfect. I know what I know, but more importantly, I know what I don't know. When I don't know something, I surround myself with people I can trust to teach me.
Treason implies responsibility for something, control over something, influence upon something, knowledge of something. Treason in our time is a proof of genius. Why, I want to know, are not traitors decorated?
Writing is something that you don't know how to do. You sit down and it's something that happens, or it may not happen. So, how can you teach anybody how to write? It's beyond me, because you yourself don't even know if you're going to be able to. I'm always worried, well, you know, every time I go upstairs with my wine bottle. Sometimes I'll sit at that typewriter for fifteen minutes, you know. I don't go up there to write. The typewriter's up there. If it doesn't start moving, I say, well this could be the night that I hit the dust.
One can never really give a proof of the reality of anything; reality is not something open to proof, it is something established. It is established just because proof is not enough. It is this characteristic of language, at once indispensable and inadequate, which shows the reality of the external world. Most people hardly ever realize this, because it is rare that the very same man thinks and puts his thought into action.
Grown people know that they do not always know the why of things, and even if they think they know, they do not know where and how they got the proof. Hence the irritation they show when children keep on demanding to know if a thing is so and how the grown folks got the proof of it. It is so troublesome because it is disturbing to the pigeonhole way of life.
I am obliged to interpolate some remarks on a very difficult subject: proof and its importance in mathematics. All physicists, and a good many quite respectable mathematicians, are contemptuous about proof. I have heard Professor Eddington, for example, maintain that proof, as pure mathematicians understand it, is really quite uninteresting and unimportant, and that no one who is really certain that he has found something good should waste his time looking for proof.
If we are going to have to worry all the time that we might offend some students' sensibilities, we are not going to be able to teach in a way that actually matters. We're not going to be able to teach about sex, gender, race, religion, or violence.
Many writers can't make a living. So to be able to teach how to write is valuable to them. But I don't really know about its value to the student. I don't mean it's useless. But I wouldn't have wanted anyone to teach me how to write.
You cannot teach somebody to write a masterpiece, but you can certainly teach them how to improve their writing skills. And you can teach them that they can make their own voices more effective by being able to communicate more clearly and forcefully. It makes people feel more capable when they can write - for instance to make a request - of a politician - and when they are able to receive a reply.
God, teach me to be patient, teach me to go slow, Teach me how to wait on You when my way I do not know. Teach me sweet forbearance when things do not go right So I remain unruffled when others grow uptight. Teach me how to quiet my racing, rising heart So I might hear the answer You are trying to impart. Teach me to let go, dear God, and pray undisturbed until My heart is filled with inner peace and I learn to know your will.
In general I like a guy who is athletic, somebody who can teach me something. Whether it's teaching me a new way to cut on a wave or teach me a three-point conversion or teach me how to dribble a soccer ball. There's something really cool about that.
Teach a child to play solitaire, and she'll be able to entertain herself when there's no one around. Teach her tennis, and she'll know what to do when she's on a court. But raise her to feel comfortable in nature, and the whole planet is her home.
It's stimulating to teach a new course. To teach a course three times in a row is, I think, about the maximum for me. On the second year - you know, the saying is that first year you learn how to teach the course, the second year you do it right, and the third year you're coasting and you had better move on to something else.
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