Study the past if you would define the future. I am not one who was born in the possession of knowledge; I am one who is fond of antiquity, and earnest in seeking it there. Learning without thought is labor lost; thought without learning is perilous.

Only through education does one come to be dissatisfied with his own knowledge, and only through teaching others does one come to realize the uncomfortable inadequacy of his knowledge. Being dissatisfied with his own knowledge, one then realizes that the trouble lies with himself, and realizing the uncomfortable inadequacy of his knowledge one then feels stimulated to improve himself. Therefore, it is said, "the processes of teaching and learning stimulate one another."

Love is like a spice. It can sweeten your life - however, it can spoil it, too.

Every truth has four corners: as a teacher I give you one corner, and it is for you to find the other three.