Enchiridion 22

If you yearn for philosophy, prepare at once to be met with ridicule, to have many people jeer at you, and say, "Here he is again, turned philosopher all of a sudden," and "Where do you suppose he got that high brow?" But do you not put on a high brow, and do you so hold fast to the things which to you seem best, as a man who has been assigned by God to this post; and remember that if you abide by the same principles, those who formerly used to laugh at you will later come to admire you, but if you are worsted by them, you will get the laugh on yourself twice.

Epictetus, Enchiridion 22, translated by W. A. Oldfather

If you desire philosophy, prepare yourself from the beginning to be ridiculed, to expect that many will sneer at you, and say, He has all at once returned to us as a philosopher; and whence does he get this supercilious look for us? Do you not show a supercilious look; but hold on to the things which seem to you best as one appointed by God to this station. And remember that if you abide in the same principles, these men who first ridiculed will afterwards admire you: but if you shall have been overpowered by them, you will bring on yourself double ridicule.

Epictetus, Enchiridion 22, translated by George Long

If set your desire on philosophy you must at once prepare to meet with ridicule and the jeers of many who will say, 'Here he is again, turned philosopher. Where has he got these proud looks?' Nay, put on no proud looks, but hold fast to what seems best to you, in confidence that God has set you at this post. And remember that if you abide where you are, those who first laugh at you will one day admire you, and that if you give way to them, you will get doubly laughed at.

Epictetus, Enchiridion 22, translated by P. E. Matheson