Generally speaking, the errors in religion are dangerous; those in philosophy only ridiculous.

Convulsions in nature, disorders, prodigies, miracles, though the most opposite of the plan of a wise superintendent, impress mankind with the strongest sentiments of religion.

All knowledge resolves itself into probability. ... In every judgment, which we can form concerning probability, as well as concerning knowledge, we ought always to correct the first judgment deriv'd from the nature of the object, by another judgment, deriv'd from the nature of the understanding.

Obscurity, indeed, is painful to the mind as well as to the eye; but to bring light from obscurity, by whatever labour, must needsbe delightful and rejoicing.

It seems to me, that the only Objects of the abstract Sciences or of Demonstration is Quantity and Number, and that all Attempts to extend this more perfect Species of Knowledge beyond these Bounds are mere Sophistry and Illusion.

But to proceed in this reconciling project with regard to the question of liberty and necessity; the most contentious question of metaphysics, the most contentious science.

When men are most sure and arrogant they are commonly most mistaken.