
Of mathematics — as quoted in Mathematics: The Loss of Certainty (1980) by Morris Kline, p. 99.
Of Regimen of Health
Essays (1625)
Of mathematics — as quoted in Mathematics: The Loss of Certainty (1980) by Morris Kline, p. 99.
Source: The rise of the western world, 1973, p. vii, Preface
Source: Man’s Search for Himself (1953), p. 67
Context: Joy, rather than happiness, is the goal of life, for joy is the emotion which accompanies our fulfilling our natures as human beings. It is based on the experience of one's identity as a being of worth and dignity, who is able to affirm his being, if need be, against all other beings and the whole inorganic world.
The Essays Or Counsels, Civil And Moral, Of Francis Ld. Verulam Viscount St. Albans (1625), Of Atheism
“Among all the studies of natural causes and reasons, light most delights the contemplators”
Perspectiva communis, translated by, and appearing in the notebooks (C.A.<sub>543r</sub>) of Leonardo da Vinci, as quoted by Martin Kemp, Leonardo Da Vinci: The Marvellous Works of Nature and Man (2006) p. 112.
Context: Among all the studies of natural causes and reasons, light most delights the contemplators; among the great things of mathematics, the certainty of its demonstrations most illustriously elevates the minds of its investigators; perspective must therefore be preferred to all human discourses and disciplines, in the study in which radiant lines are expounded by means of demonstrations and in which the glory is found not only of mathematics, but also physics: it is adorned with the flowers of one and the other.
Un Art de Vivre (The Art of Living) (1939), The Art of Loving
As quoted in Bowron, Aurisch, Supan, Künste (2000). Romantics, realists, revolutionaries: masterpieces of 19th-century German painting from the Museum of Fine Arts, Leipzig. Prestel. p. 158