I believe there exists, & I feel within me, an instinct for the truth, or knowledge or discovery, of something of the same nature as the instinct of virtue, & that our having such an instinct is reason enough for scientific researches without any practical results ever ensuing from them.

If you shut your door to all errors truth will be shut out.

A man of truth must ever be confident, if he has also equal need to be diffident.

Silence becomes cowardice when occasion demands speaking out the whole truth and acting accordingly.

Truth is generally the best vindication against slander.

Truth is God, and truth overrides all our plans.