Let not your mind run on what you lack as much as on what you have already.

Keep constantly in mind in how many things you yourself have witnessed changes already. The universe is change, life is understanding.

It will suffice thee to remember as concerning pain ... that the mind may, by stopping all manner of commerce and sympathy with the body, still retain its own tranquility.

Bear in mind that the measure of a man is the worth of the things he cares about. If it is good to say or do something, then it is even better to be criticized for having said or done it.

Everything - a horse, a vine - is created for some duty... For what task, then, were you yourself created?

Just as nature takes every obstacle, every impediment, and works around it--turns it to its purposes, incorporates it into itself, so, too, a rational being can turn each setback into raw material and use it to achieve its goal.

How ridiculous not to flee from one's own wickedness, which is possible, yet endeavor to flee from another's which is not.