I might as well doubt of my own being, as of the being of those things I actually see and feel.

I had rather be an oyster than a man, the most stupid and senseless of animals.

That the discovery of this great truth, which lies so near and obvious to the mind, should be attained to by the reason of so veryfew, is a sad instance of the stupidity and inattention of men, who, though they are surrounded with such clear manifestations of the Deity, are yet so little affected by them, that they seem as it were blinded with excess of light.

I do not deny the existence of material substance merely because I have no notion of it, but because the notion of it is inconsistent, or in other words, because it is repugnant that there should be a notion of it.

Whenever I attempt to frame a simple idea of time, abstracted from the succession of ideas in my mind, which flows uniformly, and is participated by all beings, I am lost and embrangled in inextricable difficulties.

A man needs no arguments to make him discern and approve what is beautiful: it strikes at first sight, and attracts without a reason. And as this beauty is found in the shape and form of corporeal things, so also is there analogous to it a beauty of another kind, an order, a symmetry, and comeliness in the moral world. And as the eye perceiveth the one, so the mind doth by a certain interior sense perceive the other, which sense, talent, or faculty, is ever quickest and purest in the noblest minds.

It is a mistake, to think the same thing affects both sight and touch. If the same angle or square, which is the object of touch,be also the object of vision, what should hinder the blind man, at first sight, from knowing it?