Seneca quote

From Moral letters to Lucilius/Letter 44 (Kindle):

Suppose, then, that you were not that Roman knight, but a freedman, you might nevertheless by your own efforts come to be the only free man amid a throng of gentlemen. "How?" you ask. Simply by distinguishing between good and bad things without patterning your opinion from the populace. You should look, not to the source from which these things come, but to the goal towards which they tend. If there is anything that can make life happy, it is good on its own merits; for it cannot degenerate into evil. Where, then, lies the mistake, since all men crave the happy life? It is that they regard the means for producing happiness as happiness itself, and, while seeking happiness, they are really fleeing from it. For although the sum and substance of the happy life is unalloyed freedom from care, and though the secret of such freedom is unshaken confidence, yet men gather together that which causes worry, and, while travelling life's treacherous road, not only have burdens to bear, but even draw burdens to themselves; hence they recede farther and farther from the achievement of that which they seek, and the more effort they expend, the more they hinder themselves and are set back. This is what happens when you hurry through a maze; the faster you go, the worse you are entangled.