Anyone who's been a teenager, or raised one, knows growing up is hard. Kids can be cruel to their peers, and many young people go through tough times and experience low moments.

Productivity is driven at the enterprise level. Better wages, better performing workplaces, are driven at the workplace level.

Both casual, unthinking discrimination and deliberate, malicious homophobia erode self-confidence and undermine mental health. Both are far too common, not just in our schoolyards or online but in sporting clubs, in the outer and even in our national parliament.

Ending discrimination and extending equality should always be a national priority.

I went to college at the University of Kansas, where I got a degree in political science.

Biology is the most powerful technology ever created. DNA is software, protein are hardware, cells are factories.

Doctor Who' is where my love of science fiction and fantasy started. I was introduced to it when I was 8, and I'm still an avid viewer.

The simple facts of Chadian life - what it takes to survive in that kind of climate with nothing but a hut and some animals - stunned me. And this made me realize, perhaps for the first time, how easy my life was compared to those of people in less privileged societies.