"It is not the eye that sees, but the soul that sees through the eye."

"The world is a ladder, and man is at the bottom. He can ascend, or he can descend."

"The wise man should always be modest and humble."

"He who thinks that he can attain the perfection of man without the help of God, errs greatly."

"One should not teach a student who is not worthy, for it is like throwing pearls before swine."