Philosophy Quotes

Philosophy may seem like gobbledygook to even the most advanced readers—but boy is it full of some nuggets of wisdom. Click on any philosophy quote below to see it in context and find out where it falls on Shmoop's pretentious scale. We'll give you details on who said it, when they said it, and in some cases, why on earth they thought it was okay to say it.

Protagoras
"Man is the measure of all things."
Source: Truth | Author: Protagoras
Bertrand Russell
"Mathematics may be defined as the subject in which we never know what we are talking about…"
Source: Mysticism and Logic | Author: Bertrand Russell
Thomas Hobbes
"No arts; no letters; no society."
Source: Leviathan | Author: Thomas Hobbes
Seneca
"That man lives badly who does not know how to die well."
Source: On Tranquility of Mind | Author: Seneca
Thomas Hobbes
"The life of man [is] solitary, poor, nasty, brutish, and short."
Source: Leviathan or The Matter, Forme and Power of a Common Wealth Ecclesiasticall and Civil | Author: Thomas Hobbes
Bertrand Russell
"The most savage controversies are about those matters as to which there is no good evidence either way."
Source: An Outline of Intellectual Rubbish | Author: Bertrand Russell
John Stuart Mill
"The only freedom which deserves the name is that of pursuing our own good in our own way"
Source: On Liberty | Author: John Stuart Mill
Hannah Arendt
"The trouble with Eichmann was precisely that so many were like him…"
Source: Eichmann in Jerusalem | Author: Hannah Arendt
Heraclitus
"The way up and the way down are one and the same."
Source: Refutations by Hippolytus | Author: Heraclitus
George Santayana
"Those who cannot remember the past are condemned to repeat it."
Source: Reason in Common Sense | Author: George Santayana
Gottfried Wilhelm Leibnitz
"We live in the best of all possible worlds."
Source: Essays of Theodicy on the Goodness of God, the Freedom of Man and the Origin of Evil | Author: Gottfried Wilhelm Leibnitz
Heraclitus
"You can never step into the same river twice."
Source: Cratylus by Plato | Author: Heraclitus