A man must stand erect, not be kept erect by others.

Dig inside. Inside is the fountain of good, and it will forever flow, if you will forever dig.

I seek the truth...it is only persistence in self-delusion and ignorance that does harm.

Let not your mind run on what you lack as much as on what you have already.

Adapt yourself to the life you have been given; and truly love the people with whom destiny has surrounded you.

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.

Nowhere can man find a quieter or more untroubled retreat than in his own soul.