Quiet people have the loudest minds.
I like physics, but I love cartoons.
It matters if you just don't give up.
The universe doesn't allow perfection.
Intelligence is the ability to adapt to change.
We should seek the greatest value of our action.
One cannot really argue with a mathematical theorem.
Nothing is better than reading and gaining more and more knowledge.
People won't have time for you if you are always angry or complaining.
Someone told me that each equation I included in the book would halve the sales.