“Change your opinions, keep to your principles; change your leaves, keep intact your roots.”

“You have enemies? Why, it is the story of every man who has done a great deed or created a new idea. It is the cloud which thunders around everything that shines. Fame must have enemies, as light must have gnats. Do no bother yourself about it; disdain. Keep your mind serene as you keep your life clear.”

“Intelligence is the wife, imagination is your mistress and memory is your slave.”

“You are adorable, mademoiselle. I study your feet with the microscope and your soul with the telescope.”

“Then live your life, above all things. Make use of your I while you have it.”

“A creditor is worst than a master; for a master owns only your physical presence, whereas a creditor owns your dignity and may affront it.”

“your name is My Brother.”