SO GOOD QUOTES

They are all in the same category, both those who are afflicted with fickleness, boredom and a ceaseless change of purpose, and who always yearn for what they have left behind, and those who just yawn from apathy.  There are those too who toss around like insomniacs, and keep changing their position until they find rest through sheer weariness.  They keep altering the condition of their lives, and eventually stick to that one in which they are trapped not by weariness with further change but by old age which is too sluggish for novelty.  There are those too who suffer not from moral steadfastness but from inertia, and so lack the fickleness to live as they wish, and just live as they have begun.  In fact there are innumerable characteristics of the malady, but one effect – dissatisfaction with oneself.  This arises from mental instability and from fearful unfulfilled desires, when men do not dare or do not achieve all they long for, and all they grasp at is hope:  they are always unbalanced and fickle, and inevitable consequence of living in suspense.

—Seneca, On the Shortness of Life: Life Is Long if You Know How to Use It