“You work for it. You don’t have to massage it, so that it fits into the way it has to be. He’s just too vigorous a writer and the dialogue is too sparking to do anything other than inhabit it and give it as much truth as you can.”

Academic freedom is being lost by a great many people who dare to challenge Darwinism. That’s a terrifying situation. That’s contrary to the principles of science.

I’m a total luddite when it comes to technology. Pretending I know how to use a computer is a challenge.

Sometimes our body is willing, but our mind is weak. Sometimes our mind is willing, but our body is weak. Do not be afraid. Strive to extend your capacity but do not be disappointed with yourself. What does not challenge us, cannot change us.

Some people are quick to challenge others but refuse to look in the mirror and challenge themselves.

She (a woman politician) will be challenging a system that is still wedded to militarism and that saves billions of dollars a year by underpaying women and using them as a reserve cheap labor supply

We must turn the greatest collective challenge facing humankind today – climate change – into the greatest opportunity for common progress towards a sustainable future.

I am confident that we will meet whatever challenges the future may bring.

As a company grows, communication becomes its biggest challenge.