Progress is impossible without change, and those who cannot change their minds, can't change anything.

Great are they who see that spiritual is stronger than any material force, that thoughts rule the world.

The superior man is satisfied and composed; the mean man is always full of distress.

“The most called-upon prerequisite of a friend is an accessible ear.”

A gem cannot be polished without friction, nor a man perfected without trials.

Grace demands nothing from us but that we shall await it with confidence.

“Always go to other people’s funerals, otherwise they won’t come to yours.”