Any pride or haughtiness, is displeasing to us, merely because it shocks our own pride, and leads us by sympathy into comparison, which causes the disagreeable passion of humility.

It is not contrary to reason to prefer the destruction of the whole world to the scratching of my finger.

For, besides, that many persons find too sensible an interest in perpetually recalling such topics; besides this, I say, the motive of blind despair can never reasonably have place in the sciences; since, however unsuccessful former attempts may have proved, there is still room to hope, that the industry, good fortune, or improved sagacity of succeeding generations may reach discoveries unknown to former ages.

All that belongs to human understanding, in this deep ignorance and obscurity, is to be sceptical, or at least cautious, and not to admit of any hypothesis whatever, much less of any which is supported by no appearance of probability.

No quality of human nature is more remarkable, both in itself and in its consequences, than that propensity we have to sympathize with others, and to receive by communication their inclinations and sentiments, however different from, or even contrary to our own.

All this creative power of the mind amounts to no more than the faculty of compounding, transposing, augmenting, or diminishing the materials afforded us the by senses and experience.

Friendship is a calm and sedate affection, conducted by reason and cemented by habit; springing from long acquaintance and mutual obligations, without jealousies or fears, and without those feverish fits of heat and cold, which cause such an agreeable torment in the amorous passion.