The truth is incontrovertible. Panic may resent it, ignorance may deride it, malice may distort it, but there it is. Speech in the House of Commons

In time of war, when truth is so precious, it must be attended by a bodyguard of lies.

Truth was the only daughter of Time.

No one is more hated than he who speaks the truth.

All truths are easy to understand once they are discovered; the point is to discover them.

Art is a lie that leads us to the truth.

Man has much power of discourse which for the most part is vain and false; animals have but little, but it is useful and true, and a small truth is better than a great lie.

"Faith" means not wanting to know what is true.

Truth will sooner come out from error than from confusion.

In the mountains of truth you will never climb in vain: either you will get up higher today or you will exercise your strength so as to be able to get up higher tomorrow.

See now the power of truth; the same experiment which at first glance seemed to show one thing, when more carefully examined, assures us of the contrary.

So blind is the curiosity by which mortals are possessed, that they often conduct their minds along unexplored routes, having no reason to hope for success, but merely being willing to risk the experiment of finding whether the truth they seek lies there.

No pleasure is comparable to the standing upon the vantage-ground of truth.

What is truth? said jesting Pilate, and would not stay for an answer.

If you would be a real seeker after truth, it is necessary that at least once in your life you doubt, as far as possible, all things.

If I found any new truths in the sciences, I can say that they follow from, or depend on, five or six principal problems which I succeeded in solving and which I regard as so many battles where the fortunes of war were on my side.

The long chains of simple and easy reasonings by means of which geometers are accustomed to reach the conclusions of their most difficult demonstrations, had led me to imagine that all things, to the knowledge of which man is competent, are mutually connected in the same way, and that there is nothing so far removed from us as to be beyond our reach, or so hidden that we cannot discover it, provided only we abstain from accepting the false for the true, and always preserve in our thoughts the order necessary for the deduction of one truth from another.

Certainly, it is heaven upon earth, to have a man's mind move in charity, rest in providence, and turn upon the poles of truth.

There are and can be only two ways of searching into and discovering truth. The one flies from the senses and particulars to the most general axioms, and from these principles, the truth of which it takes for settled and immovable, proceeds to judgment and to the discovery of middle axioms. And this way is now in fashion. The other derives axioms from the senses and particulars, rising by a gradual and unbroken ascent, so that it arrives at the most general axioms last of all. This is the true way, but as yet untried.

The logic now in use serves rather to fix and give stability to the errors which have their foundation in commonly received notions than to help the search for truth. So it does more harm than good.