Beauty in things exist in the mind which contemplates them. - David Hume
A rock pile ceases to be a rock pile the moment a single man contemplates it, bearing within him the image of a cathedral. - Antoine De Saint-Exupery
Beauty is no quality in things themselves: it exists merely in the mind which contemplates them. - David Hume
Man is the only animal that contemplates death, and also the only animal that shows any sign of doubt of its finality. - William Ernest Hocking
[Beauty] exists merely in the mind which contemplates [things]; and each mind perceives a different beauty; and every individual ought to acquiesce in his own sentiment, without pretending to regulate those of others. - David Hume