# Proof

**Proof** is sufficient evidence or argument for the truth of a proposition.

This science article is a stub. You can help Wikiquote by expanding it. |

## QuoteEdit

- You may prove anything by figures.
- Quoted by Thomas Carlyle,
*Chartism*, No. 2; reported in*Hoyt's New Cyclopedia Of Practical Quotations*(1922), p. 636.

- Quoted by Thomas Carlyle,

**A very great deal more truth can become known than can be proven.**

**You cannot demonstrate an emotion or prove an aspiration.**- John Morley,
*Rousseau*(1876), p. 402.

- John Morley,

**For when one's proofs are aptly chosen,**

Four are as valid as four dozen.- Matthew Prior,
*Alma*(1718), Canto I. End.

- Matthew Prior,

**Prove all things; hold fast that which is good.**- Paul of Tarsus,
*I Thessalonians*5: 21.

- Paul of Tarsus,

**Extraordinary claims require extraordinary proof.**

*quod gratis asseritur, gratis negatur.*- What is asserted gratuitously may be denied gratuitously.
*Variant*: What is asserted without proof (evidence, reason), may (can) be denied (dismissed) without proof (evidence, reason).- Anonymous maxim, widely used since at least the early 19th century (e.g.
*The Classical Journal*, Vol. 40 (1829), p. 312).