“The more sand that has escaped from the hourglass of our life, the clearer we should see through it.“

“The road to enlightenment is long and difficult, and you should try not to forget snacks and magazines.”

“I have found the best way to give advice to your children is to find out what they want and then advise them to do it.”

“Look up at the stars and not down at your feet. Try to make sense of what you see, and wonder about what makes the universe exist. Be curious.”

“Problem solving, and I don’t mean algebra, seems to be my life’s work. Maybe it’s everyone’s life’s work.”

“How do you live a long life? Take a two-mile walk every morning before breakfast.”