The key to success is to keep growing in all areas of life - mental, emotional, spiritual, as well as physical.

One must choose in life between boredom and suffering.

The property which every man has in his own labor， as it is the original foundation of all other property， so it is the most sacred and inviolable.

I think the best way to get over someone is to get under someone else.

The periodic table is not just a chart; it’s a story of the universe.

The theory of probabilities is the only mathematical tool available to help map the unknown and the uncontrollable.

I think it's important to keep challenging yourself, to keep growing.