The saying of Protagoras is like the views we have mentioned; he said that man is the measure of all things, meaning simply that that which seems to each man assuredly is. If this is so, it follows that the same thing both is and is not, and is bad and good, and that the contents of all other opposite statements are true, because often a particular thing appears beautiful to some and ugly to others, and that which appears to each man is the measure
Habit is habit and not to be flung out of the window by any man, but coaxed downstairs a step at a time. You cannot eliminate habits that no longer serve you. You can only replace them with new habits that support your goals. Moment by moment, you need to live with awareness and structure the habits that you include or exclude in your days.
Nor need it cause surprise that things disagreeable to the good man should seem pleasant to some men; for mankind is liable to many corruptions and diseases, and the things in question are not really pleasant, but only pleasant to these particular persons, who are in a condition to think them so.
I say no body of men are fit to make Presidents, judges and generals, unless they themselves supply the best specimens of the same; and that supplying one or two such specimens illuminates the whole body for a thousand years.
And ask each passenger to tell his story, and if there is one of them all who has not cursed his existence many times, and said to himself over and over again that he was the most miserable of men, I give you permission to throw me head-first into the sea.