First tell yourself what you want to be, then do what you need to do.

Bear in mind that you should conduct yourself in life as at a feast.

Common and vulgar people ascribe all ills that they feel to others; people of little wisdom ascribe to themselves; people of much wisdom, to no one.

Two principles we should always have ready — that there is nothing good or evil save in the will; and that we are not to lead events, but to follow them.

In life our first job is this, to divide and distinguish things into two categories: externals I cannot control, but the choices I make with regard to them I do control. Where will I find good and bad? In me, in my choices.

Happiness and freedom begin with a clear understanding of one principle: Some things are within our control, and some things are not. It is only after you have faced up to this fundamental rule and learned to distinguish between what you can and can't control that inner tranquility and outer effectiveness become possible.

Bid a singer in a chorus, Know Thyself; and will he not turn for the knowledge to the others, his fellows in the chorus, and to his harmony with them?