Leave other people's mistakes where they lie.

How barbarous, to deny men the privilege of pursuing what they imagine to be their proper concerns and interests! Yet, in a sense, this is just what you are doing when you allow your indignation to rise at their wrongdoing; for after all, they are only following their own apparent concerns and interests. You say they are mistaken? Why then, tell them so, and explain it to them, instead of being indignant.

You exist but as a part inherent in a greater whole. Do not live as though you had a thousand years before you. The common due impends; while you live, and while you may, be good.

Short is the little which remains to thee of life. Live as on a mountain.

If you are distressed by anything external, the pain is not due to the thing itself, but to your estimate of it; and this you have the power to revoke at any moment.

Think of the country mouse and of the town mouse, and of the alarm and trepidation of the town mouse.

Be cheerful, also, and seek not external help, nor the peace which others give. A man must stand straight, and not be kept straight by others.