Live long enough, and you’ll become a philosopher.

One becomes a philosopher [...] by living among people who are not of his own race and who speak a different language [...] A trip to a Central American jungle to watch how Indians behave near a bridge won't make you see either the jungle or the bridge or the Indians if you believe that the civilization you were born into is the only one that counts. Go and look around with the idea that everything you learned in school and college is wrong.

You don’t need schooling to be a philosopher. Just an active mind and experience with life.

The first thing to realize, if you wish to become a philosopher, is that most people go through life with a whole world of beliefs that have no sort of rational justification, and that one man's world of beliefs is apt to be incompatible with another man's, so that they cannot both be right. People's opinions are mainly designed to make them feel comfortable; truth, for most people is a secondary consideration.

You don't need schooling to be a philosopher. Just an active mind and experience with life.

Make yourself known as a philosopher, that is a free man.

To become a philosopher, start by walking very slowly.

Be a philosopher, but amid all your philosophy be still a man.

We are wont to say that it was not in our power to choose the parents who fell to our lot, that they have been given to men by chance; yet we may be the sons of whomsoever we will. Households there are of noblest intellects; choose the one into which you wish to be adopted; you will inherit not merely their name, but even their property, which there will be no need to guard in a mean or niggardly spirit; the more persons you share it with, the greater it will become. These will open to you the path to immortality, and will raise you to a height from which no one is cast down. This is the only way of prolonging mortality — nay, of turning it into immortality. Honours, monuments, all that ambition has commanded by decrees or reared in works of stone, quickly sink to ruin; there is nothing that the lapse of time does not tear down and remove. But the works which philosophy has consecrated cannot be harmed; no age will destroy them, no age reduce them; the following and each succeeding age will but increase the reverence for them, since envy works upon what is close at hand, and things that are far off we are more free to admire. The life of the philosopher, therefore, has wide range, and he is not confined by the same bounds that shut others in. He alone is freed from the limitations of the human race; all ages serve him as if a god. Has some time passed by? This he embraces by recollection. Is time present? This he uses. Is it still to come? This he anticipates. He makes his life long by combining all times into one.

If you want to be a philosopher king first become a king then become a philosopher. Not first become a philosopher and then become a king.

To be a philosopher is not merely to have subtle thoughts, nor even to found a school, but so to love wisdom as to live according to its dictates, a life of simplicity, independence, magnanimity and trust.

One can only become a philosopher, but not be one. As one believes he is a philosopher, he stops being one.

For my own part, without breach of truth or modesty, I may affirm that my life has been, on the whole, the life of a philosopher: from my birth I was made an intellectual creature, and intellectual in the highest sense my pursuits and pleasures have been, even from my schoolboy days.

First, anyone who seriously intends to become a philosopher must "once in his life" withdraw into himself and attempt, within himself, to overthrow and build anew all the sciences that, up to then, he has been accepting.