“What he himself is, whether he is or is not, he does not know so much as this.”
Ipse qui sit, utrum sit an non sit, id quoque nescit.
Gaio Valerio Catullo list of poems by Catullus
XVII, line 22
Carmina
Il connaît l’univers, et ne se connaît pas.
Book VIII (1678–1679), fable 26.
Fables (1668–1679)
“What he himself is, whether he is or is not, he does not know so much as this.”
Ipse qui sit, utrum sit an non sit, id quoque nescit.
Gaio Valerio Catullo list of poems by Catullus
XVII, line 22
Carmina
Reinhold Niebuhr (1892–1971) American protestant theologian
vol. 1, p. 131
The Nature and Destiny of Man: A Christian Interpretation (1941)
Vincent de Paul (1581–1660) French priest, founder and saint
As quoted in A Year with the Saints (1891) by Anonymous, p. 47
Max Ernst (1891–1976) German painter, sculptor and graphic artist
Quote from 'Max Ernst', exhibition catalogue, Galerie Stangl, Munich, 1967, U.S., pp.6-7, as cited in Edward Quinn, Max Ernst. 1984, Poligrafa, Barcelona. p. 12
1951 - 1976
“He who does not reflect his life back to God in gratitude does not know himself.”
Albert Schweitzer (1875–1965) French-German physician, theologian, musician and philosopher
Source: Reverence for Life: The Words of Albert Schweitzer
Charles Péguy (1873–1914) French poet, essayist, and editor
"Lettre du Provincial" (21 December 1899)
Basic Verities, Prose and Poetry (1943)
Marcus Aurelius book Meditations
He that knows not what the world is, knows not where he is himself. He that knows not for what he was made, knows not what he is nor what the world is.
VIII, 52
Meditations (c. 121–180 AD), Book VIII
William Hazlitt (1778–1830) English writer
No. 112
Characteristics, in the manner of Rochefoucauld's Maxims (1823)
“He who knows does not speak; he who speaks does not know.”
Laozi book Tao Te Ching
Variant: Those who know, do not speak, those who speak, do not know.
Source: Tao Te Ching, Ch. 56
Baltasar Gracián book The Art of Worldly Wisdom
El que no se hallare con ánimo de sufrir apele al retiro de sí mismo, si es que aun a sí mismo se ha de poder tolerar.
Maxim 159 (p. 90)
The Art of Worldly Wisdom (1647)