“Now what we call “bourgeois,” when regarded as an element always to be found in human life, is nothing else than the search for a balance. It is the striving after a mean between the countless extremes and opposite that arise in human conduct.”

translated as The Cost of Discipleship (1959), p. 51.
Discipleship (1937), Costly Grace
Context: The antithesis between the Christian life and the life of bourgeois respectability is at an end. The Christian life comes to mean nothing more than living in the world and as the world, in being no different from the world, in fact, in being prohibited from being different from the world for the sake of grace. The upshot of it all is that my only duty as a Christian is to leave the world for an hour or so on a Sunday morning and go to church to be assured that my sins are all forgiven. I need no longer try to follow Christ, for cheap grace, the bitterest foe of discipleship, which true discipleship must loathe and detest, has freed me from that.

The trial of Charles B. Reynolds for blasphemy (1887)
Context: We have now a science called astronomy. That science has done more to enlarge the horizon of human thought than all things else. We now live in an infinite universe. We know that the sun is a million times larger than our earth, and we know that there are other great luminaries millions of times larger than our sun. We know that there are planets so far away that light, traveling at the rate of one hundred and eighty- five thousand miles a second, requires fifteen thousand years to reach this grain of sand, this tear, we call the earth -- and we now know that all the fields of space are sown thick with constellations. If that statute had been enforced, that science would not now be the property of the human mind. That science is contrary to the Bible, and for asserting the truth you become a criminal. For what sum of money, for what amount of wealth, would the world have the science of astronomy expunged from the brain of man? We learned the story of the stars in spite of that statute.

Source: Himalayan Lust

Nobel Prize lecture (12 December 1976)
General sources
Context: A novel is balanced between a few true impressions and the multitude of false ones that make up most of what we call life. It tells us that for every human being there is a diversity of existences, that the single existence is itself an illusion in part, that these many existences signify something, tend to something, fulfill something; it promises us meaning, harmony, and even justice.

Source: A Letter to a Hindu (1908), VI
Context: The inherent contradiction of human life has now reached an extreme degree of tension: on the one side there is the consciousness of the beneficence of the law of love, and on the other the existing order of life which has for centuries occasioned an empty, anxious, restless, and troubled mode of life, conflicting as it does with the law of love and built on the use of violence. This contradiction must be faced, and the solution will evidently not be favourable to the outlived law of violence, but to the truth which has dwelt in the hearts of men from remote antiquity: the truth that the law of love is in accord with the nature of man. But men can only recognize this truth to its full extent when they have completely freed themselves from all religious and scientific superstitions and from all the consequent misrepresentations and sophistical distortions by which its recognition has been hindered for centuries.

De Pace Fidei (The Peace of Faith) (1453)

A Testament (1957)

Maxims of an Old Stager.
Context: Always judge your fellow passengers to be the opposite of what they strive to appear to be.
For instance, a military man is not quarrelsome, for no man doubts his courage; but a snob is.
A clergyman is not over strait- laced, for his piety is not questioned; but a cheat is.
A lawyer is not apt to be argumentative; but an actor is.
A woman that is all smiles and graces is a vixen at heart : snakes fascinate.
A stranger that is obsequious and over-civil without apparent cause is treacherous: cats that purr are apt to bite and scratch.
Pride is one thing, assumption is another; the latter must always get the cold shoulder, for whoever shews it is no gentleman: men never affect to be what they are, but what they are not. The only man who really is what he appears to be is — a gentleman.