Beauty in things exists in the mind that contemplates them. - David Hume

All the materials of thinking are derived either from our outward senses or from our inward feelings: all that the mind and will do is to mix and combine these materials.

The most perfect philosophy of the natural kind only staves off our ignorance a little longer: as perhaps the most perfect philosophy of the moral or metaphysical kind serves only to discover larger portions of it. Thus the observation of human blindness and weakness is the result of all philosophy, and meets us at every turn, in spite of our endeavours to elude or avoid it.

Nothing is more usual than for philosophers to encroach upon the province of grammarians; and to engage in disputes of words, while they imagine that they are handling controversies of the deepest importance and concern.