When you close your doors, and make darkness within, remember never to say that you are alone, for you are not alone; nay, God is within, and your genius is within. And what need have they of light to see what you are doing?

To live a life of virtue, match up your thoughts, words, and deeds.

Keep your attention focused entirely on what is truly your own concern, and be clear that what belongs to others is their business and none of yours.

To accuse others for one's own misfortunes is a sign of want of education. To accuse oneself shows that one's education has begun. To accuse neither oneself nor others shows that one's education is complete.

It’s time to stop being vague. If you wish to be an extraordinary person, if you wish to be wise, then you should explicitly identify the kind of person you aspire to become.

Do not try to seem wise to others.

In theory there is nothing to hinder our following what we are taught;but in life there are many things to draw us aside.