He who has learned to love an art or science has wisely laid up riches against the day of riches.

Refuse to allow a weakness or a lack of ability in any area to hold you back. Everything is learnable. And what others have learned, you can learn as well.

Your future largely depends on what you learn and practice from this moment onward.

Continually upgrade your skills in your key result areas. Remember, however good you are today, your knowledge and skills are becoming obsolete at a rapid rate. As Pat Riley, the basketball coach, said, "Anytime you stop striving to get better, you're bound to get worse.

Read in your field for at least one hour every day.

If someone is doing better than you are today, it is because they have developed a habit of thinking and acting that you have not learned. And whatever other people have learned, you can learn as well.

The best news is that all sales skills, including closing, are learned and learnable. If you can drive a car, you can learn how to close the sale.

To achieve something that you have never achieved before, you must learn and practice qualities and skills that you have never had before.

Not explaining science seems to me perverse. When you're in love, you want to tell the world.

Science is based on experiment, on a willingness to challenge old dogma, on an openness to see the universe as it really is. Accordingly, science sometimes requires courage - at the very least the courage to question the conventional wisdom.

The suppression of uncomfortable ideas may be common in religion or in politics, but it is not the path to knowledge, and there's no place for it in the endeavor of science. We do not know beforehand where fundamental insights will arise from about our mysterious and lovely solar system. The history of our study of our solar system shows us clearly that accepted and conventional ideas are often wrong, and that fundamental insights can arise from the most unexpected sources.

When you're in love, you want to tell the world. This book is a personal statement, reflecting my lifelong love affair with science.