logic Quotes

Contradiction is not a sign of falsity, nor the lack of contradiction a sign of truth.

Nothing fortifies scepticism more than the fact that there are some who are not sceptics; if all were so, they would be wrong.

It's in the best interest of the radical left types - best psychological and strategic interest - to refuse to admit to the possibility that reasonable people can object to their ideological staff. Because if reasonable people objected, that would imply that their ideological stance is not reasonable.

I'm generally a very pragmatic person: that which works, works.

That the sun will not rise tomorrow is no less intelligible a proposition, and implies no more contradiction, than the affirmation, that it will rise.

A wise man proportions his belief to the evidence.

It is not contrary to reason to prefer the destruction of the whole world to the scratching of my finger.

No testimony is sufficient to establish a miracle, unless the testimony be of such a kind, that its falsehood would be more miraculous than the fact which it endeavors to establish.

And what is the greatest number? Number one.

The most formidable weapon against errors of every kind is reason.