Be not afraid of life. Believe that life is worth living, and your belief will help create the fact.

The history of philosophy is to a great extent that of a certain clash of human temperaments.

To study the abnormal is the best way of understanding the normal.

Whenever you're in conflict with someone, there is one factor that can make the difference between damaging your relationship and deepening it. That factor is attitude.

Psychology is the science of the intellects, characters and behavior of animals including man.

The earlier you invest, the higher that attrition rate is because it's compounded. We have a more scientific method of investment.

Men are not allowed to think freely about chemistry and biology: why should they be allowed to think freely about political philosophy?

A vote to leave would be a leap into the dark that would put our status as a science superpower at risk. That is why I will be joining Boris in making a positive case for Britain's future in a reformed E.U.