We must never fear robbers or murderers. They are dangers from outside, small dangers. It is ourselves we have to fear. Prejudice is the real robber, vice the real murderer. Why should we be troubled by a threat to our person or our pocket? What we have to beware of is the threat to our souls'.
Let us have compassion for those under chastisement. Alas, who are we ourselves? Who am I and who are you? Whence do we come and is it quite certain that we did nothing before we were born? This earth is not without some resemblance to a gaol. Who knows but that man is a victim of divine justice? Look closely at life. It is so constituted that one senses punishment everywhere.
Look not at the face, young girl, look at the heart. The heart of a handsome young man is often deformed. There are hearts in which love does not keep. Young girl, the pine is not beautiful; it is not beautiful like the poplar, but it keeps its foliage in winter.
To rove about, musing, that is to say loitering, is, for a philosopher, a good way of spending time, especially in that kind of mock rurality, ugly but odd, and partaking of two natures, which surrounds certain large cities, particularly Paris.
It is the essence of truth that it is never excessive. Why should it exaggerate? There is that which should be destroyed and that which should be simply illuminated and studied. How great is the force of benevolent and searching examination! We must not resort to the flame where only light is required.
In short, I am doing what I can, I suffer with the same universal suffering, and I try to assuage it, I possess only the puny forces of a man, and I cry to all: “Help me!
Because a fact seems strange to you, you conclude that it is not one. ... All science, however, commences by being strange. Science is successive. It goes from one wonder to another. It mounts by a ladder. The science of to-day would seem extravagant to the science of a former time. Ptolemy would believe Newton mad.