“A man contains all that is needed to make up a tree; likewise, a tree contains all that is needed to make up a man. Thus, finally, all things meet in all things, but we need a Prometheus to distill it.”

Le mythe de Prométhée signifie que toute la tristesse du monde a son siège dans le foie. Mais qui oserait reconnaître une vérité si humble?
Le Nœud de vipères (1932), cited from Oeuvres romanesques, vol. 2 (Paris: Flammarion, 1965) p. 166; Gerard Hopkins (trans.) Knot of Vipers (London: Eyre & Spottiswoode, 1951) p. 151.

Source: The Tales of Alvin Maker, Prentice Alvin (1989), Chapter 9.

Introduction: The Custom-House
The Scarlet Letter (1850)

As quoted in Diogenes Laërtius, The Lives and Opinions of Eminent Philosophers, I, 35

Variant: We need to forgive ourselves. For all the things we didn't do. All the things we should have done. You can't get stuck on the regrets of what should have happened.
Source: Tuesdays with Morrie

The Life of Pythagoras (1919)
Context: Fragment 2. All things, at least those we know, contain number; for it is evident that nothing whatever can either be thought or known, without number. Number has two distinct kinds: the odd, and the even, and a third, derived from a mingling of the other two kinds, the even-odd. Each of its subspecies is susceptible of many very numerous varieties; which each manifests individually.

Source: Kafka on the Shore

Frag. B 4, quoted in John Burnet's Early Greek Philosophy, (1920), Chapter 6.