The happiness of your life depends upon the quality of your thoughts: therefore, guard accordingly, and take care that you entertain no notions unsuitable to virtue and reasonable nature.

If you are distressed by something, it is due to your own estimate of it; and you have the power to change it at will.

Everything that happens either happens in such a way as you are formed by nature to bear it, or as you are not formed by nature to bear it.

The only thing that isn't worthless: to live this life out truthfully and rightly, And be patience with those who don't.

Imagine you were now dead, or had not lived before his moment. Now view the rest of your life as a bonus.

The substance of the universe is obedient and compliant; and the reason which governs it has in itself no cause for doing evil, for it has no malice, nor does it do evil to anything, nor is anything harmed by it. But all things are made and perfected according to this reason.

Observe always that everything is the result of a change, and get used to thinking that there is nothing Nature loves so well as to change existing forms and to make new ones like them.