The evil which assails us is not in the localities we inhabit but in ourselves. We lack strength to endure the least task, being incapable of suffering pain, powerless to enjoy pleasure, impatient with everything. How many invoke death when, after having tried every sort of change, they find themselves reverting to the same sensations, unable to discover any new experience.
Seneca the YoungerTrue happiness is to enjoy the present, without anxious dependence upon the future, not to amuse ourselves with either hopes or fears but to rest satisfied with what we have, which is sufficient, for he that is so wants nothing. The greatest blessings of mankind are within us and within our reach. A wise man is content with his lot, whatever it may be, without wishing for what he has not.
Seneca the Younger