proof Quotes

Of means of persuading by speaking there are three species: some consist in the character of the speaker; others in the disposing the hearer a certain way; others in the thing itself which is said, by reason of its proving,... ...

Now all orators effect their demonstrative proofs by allegation either of enthymems or examples, and, besides these, in no other way whatever.

A statement is convincing and believable either because it's obviously true or because it seems proven by other statements that are true.

All proofs rest on premises.

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

If there is any kind of animal which is female and has no male separate from it, it is possible that this may generate a young one from itself. No instance of this worthy of any credit has been observed... ...

Of the modes of persuasion furnished by the spoken word there are three kinds. The first kind depends on the personal character ofthe speaker; the second on putting the audience into a certain frame of mind; the third on the... ...

If you prove the cause, you at once prove the effect; and conversely nothing can exist without its cause.

Persuasion is clearly a kind of proof, because we are most convinced when we feel something has been proven.