Maimónides (1138–1204) rabbi, physician, philosopher
Source: Hilkhot De'ot (Laws Concerning Character Traits), Chapter 2, Section 7, p. 33
Shulchan Arukh, Yoreh De'a, 246:21, as cited in "Separation from the Worldly (Perishut)" http://etzion.org.il/en/separation-worldly-perishut
Maimónides (1138–1204) rabbi, physician, philosopher
Source: Hilkhot De'ot (Laws Concerning Character Traits), Chapter 2, Section 7, p. 33
“An artisan busies himself with his work for three hours each day and spends nine hours in study.”
Maimónides book Mishneh Torah
Treatise 3: “The Study of the Torah,” Chapter 1, Section 12, H. Russell, trans. (1983), p. 52
Mishneh Torah (c. 1180)
Vilna Gaon (1720–1797) Polish-Lithuanian rabbi; Mitnagdim leader in opposition to Hasidism
Commentary on Mishlei 23:30, as cited in "Separation from the Worldly (Perishut)" http://etzion.org.il/en/separation-worldly-perishut
Democritus Ancient Greek philosopher, pupil of Leucippus, founder of the atomic theory
Source Book in Ancient Philosophy (1907), The Fragments
Patricia A. McKillip book The Forgotten Beasts of Eld
Source: The Forgotten Beasts of Eld (1974), Chapter 11, pp. 311-312.
Myles Munroe (1954–2014) Bahamian Evangelical Christian minister
Source: The Purpose and Power of Love & Marriage