Philosophy is written in this grand book - I mean the Universe - which stands continually open to our gaze, but it cannot be understood unless one first learns to comprehend the language and interpret the characters in which it is written. It is written in the language of mathematics, and its characters are triangles, circles and other geometrical figures, without which it is humanly impossible to understand a single word of it
Galileo Galilei
All are lunatics, but he who can analyze his delusions is called a philosopher
Ambrose Bierce
One's philosophy is not best expressed in words; it is expressed in the choices one makes ... and the choices we make are ultimately our responsibility
Eleanor Roosevelt
When he who hears does not know what he who speaks means, and when he who speaks does not know what he himself means, that is philosophy
Voltaire
The man of science is a poor philosopher
Albert Einstein
I would not think that philosophy and reason themselves will be man's guide in the foreseeable future; however, they will remain the most beautiful sanctuary they have always been for the select few
Albert Einstein
Philosophy, rightly defined, is simply the love of wisdom
Marcus Tullius Cicero
Only the extremely ignorant or the extremely intelligent can resist change
Socrates
In philosophy, it is not the attainment of the goal that matters, it is the things that are met along the way
Havelock Ellis
Philosophy is a study that lets us be unhappy more intelligently
Unknown
Philosophy is an elegant thing, if anyone modestly meddles with it; but if they are conversant with it more than is becoming, it corrupts them
Plato
The grand show is eternal. It is always sunrise somewhere; the dew is never dried all at once; a shower is forever falling; vapor is ever rising. Eternal sunrise, eternal dawn and gloaming, on sea and continents and islands, each in its turn, as the round earth rolls
John Muir
To be a philosopher is not merely to have subtle thoughts, nor even to found a school, but to so love wisdom as to live according to its dictates a life of simplicity, independence, magnanimity and trust
Henry David Thoreau
The philosophers have only interpreted the world, in various ways; the point, however, is to change it
Karl Marx