152
" It is a curious thing, but as one travels the world getting older and older, it appears that happiness is easier to get used to than despair. The second time you have a root beer float, for instance, your happiness at sipping the delicious concoction may not be quite as enormous as when you first had a root beer float, and the twelfth time your happiness may be still less enormous, until root beer floats begin to offer you very little happiness at all, because you have become used to the taste of vanilla ice cream and root beer mixed together. However, the second time you find a thumbtack in your root beer float, your despair is much greater than the first time, when you dismissed the thumbtack as a freak accident rather than part of the scheme of a soda jerk, a phrase which here means " ice cream shop employee who is trying to injure your tongue," and by the twelfth time you find a thumbtack, your despair is even greater still, until you can hardly utter the phrase " root beer float" without bursting into tears. It is almost as if happiness is an acquired taste, like coconut cordial or ceviche, to which you can eventually become accustomed, but despair is something surprising each time you encounter it. "
153
" For what prevents us from saying that the happy life is to have a mind that is free, lofty, fearless and steadfast - a mind that is placed beyond the reach of fear, beyond the reach of desire, that counts virtue the only good, baseness the only evil, and all else but a worthless mass of things, which come and go without increasing or diminishing the highest good, and neither subtract any part from the happy life nor add any part to it?
A man thus grounded must, whether he wills or not, necessarily be attended by constant cheerfulness and a joy that is deep and issues from deep within, since he finds delight in his own resources, and desires no joys greater than his inner joys. "
― Seneca , The Stoic Philosophy of Seneca: Essays and Letters