The mind that engages in subjects of too great variety becomes confused and weakened.

I have discovered that a screw-shaped device such as this, if it is well made from starched linen, will rise in the air if turned quickly.

You must grow in patience when you meet with great wrongs, and they will then be powerless to vex your mind.

The water which rises in the mountains is the blood which keeps the mountain in life.

The vine that has grown old on an old tree falls with the ruin of that tree, and through that bad companionship must perish with it.

Do not reveal, if liberty is precious to you; my face is the prison of love.

Especially learn how to see.