A man can wear out a particular part of his mind by continually using and tiring it, just in the same way he can wear out the elbows of his coat.

The tired parts of the mind can be rested and strengthened not merely by rest, but by using other parts.

I would rather be stricken blind than to live without expression of mind.

It is the calm, forgiving, equable, well-balanced mind that does the greatest amount of work.

Mind precedes all mental states. Mind is their chief; they are all mind-wrought. If with a pure mind a person speaks or acts happiness follows him like his never-departing shadow.

Be devoted to heedfulness. Guard your mind.