„Waiting for perfect is never as smart as making progress.”

Life is an echo. What you send out, comes back. More:

In the face of difficulties, hardships, and obstacles, it is our inner strength and determination that carry us through.

There are many little ways to enlarge your child's world. Love of books is the best.

If wars can be started by lies, they can be stopped by truth.

I have no special talent. I am only passionately curious.

Pure mathematics is, in its way, the poetry of logical ideas.