Upon the whole, necessity is something, that exists in the mind, not in objects; nor is it possible for us ever to form the most distant idea of it, consider'd as a quality in bodies. Either we have no idea of necessity, or necessity is nothing but that determination of thought to pass from cause to effects and effects to causes, according to their experienc'd union.

The corruption of the best things gives rise to the worst.

The sweetest path of life leads through the avenues of learning, and whoever can open up the way for another, ought, so far, to be esteemed a benefactor to mankind.

What a peculiar privilege has this little agitation of the brain which we call 'thought'.

But, historians, and even common sense, may inform us, that, however specious these ideas of perfect equality may seem, they are really, at bottom, impracticable; and were they not so, would be extremely pernicious to human society. Render possessions ever so equal, men's different degrees of art, care, and industry will immediately break that equality. Or if you check these virtues, you reduce society to the most extreme indigence; and instead of preventing want and beggary in a few, render it unavoidable to the whole community.

The great charm of poetry consists in lively pictures of the sublime passions, magnanimity, courage, disdain of fortune; or thoseof the tender affections, love and friendship; which warm the heart, and diffuse over it similar sentiments and emotions.

It is still open for me, as well as you, to regulate my behavior, by my experience of past events.