“The growth of love is not a straight line, but a series of hills and valleys.”

Source: Don't Die, My Love

Source: Lectures on Philosophy (1959), p. 87

This is the voice of our conscience, telling us of the righteousness of God. And since conscience is the perfect interpreter of life, what it tells us is no question, no riddle, no problem, but a fact — the deepest, innermost, surest fact of life: God is righteous. Our only question is what attitude toward the fact we ought to take.
We shall hardly approach the fact with our critical reason. The reason sees the small and the larger but not the large. It sees the preliminary, but not the final, the derived but not the original, the complex but not the simple. It sees what is human but not what is divine.
We shall hardly be taught this fact by men.
"The Righteousness of God" (1916) in The Word of God and the Word of Man (1928) as translated by Douglas Horton; this passage begins with a quote of Isaiah 40:3-5; often quoted alone has been the phrase following it: "Conscience is the perfect interpreter of life."

Reply to the King's attorney-general (June 1770), in a New York court case decided against him, prior to his armed resistance to claims of New York authority over Vermont; quoted in Curiosities of Human Nature (1844) by Samuel Griswold Goodrich, p. 145, and in "Ethan Allen & the Green Mountain Boys" in Harper's New Monthly Magazine No. 102 (November 1858) http://www.usgennet.org/usa/topic/revwar/NH/ethanallen.html

Periods of 25 Variable Stars in the Small Magellanic Cloud http://adsabs.harvard.edu/abs/1912HarCi.173....1L (1912)
Context: A remarkable relation between the brightness of these [Cepheid] variables and the length of their periods will be noticed. In H. A. 60, No.4, attention was called to the fact that the brighter variables have the longer periods, but at that time it was felt that the number was too small the drawing of general conclusions. The periods of 8 additional variables which have been determined since that time, however, conform to the same law. The relation is shown graphically in Figure 1... The two resulting curves, one for the maxima and one for the minima, are surprisingly smooth, and of remarkable form. In Figure 2, the abscissas are equal to the logarithms of the periods, and the ordinates to the corresponding magnitudes, as in Figure 1. A straight line can readily be drawn among each of the two series of points corresponding to the maxima and minima, thus showing that there is a simple relation between the brightness of the variables and their periods. The logarithm of the period increases by about 0.48 for each increase of one magnitude in brightness.

Preface to Poets & Poetry of Scotland Vol 1 , Blackie & Son , Edinburgh 1876

Fiction, The Colour Out of Space (1927)
Context: West of Arkham the hills rise wild, and there are valleys with deep woods that no axe has ever cut. There are dark narrow glens where the trees slope fantastically, and where thin brooklets trickle without ever having caught the glint of sunlight. On the gentle slopes there are farms, ancient and rocky, with squat, moss-coated cottages brooding eternally over old New England secrets in the lee of great ledges; but these are all vacant now, the wide chimneys crumbling and the shingled sides bulging perilously beneath low gambrel roofs. The old folk have gone away, and foreigners do not like to live there. French-Canadians have tried it, Italians have tried it, and the Poles have come and departed. It is not because of anything that can be seen or heard or handled, but because of something that is imagined. The place is not good for imagination, and does not bring restful dreams at night.

Mould Manifesto against Rationalism in Architecture (1958)