Do not ghettoize society by putting people into legal categories of gender, race, ethnicity, language, or other such characteristics.

For many years I have advocated 'redesigning Parliament' in a variety of ways - elect the Senate, do away with the 'confidence convention,' permit freer voting, strengthen the role of back benchers and committees, do away with ineffectual 'take note' debates, restructure question period, and so on.

When the initial effort of political and business leaders to influence public opinion on an issue is to threaten rather than to engage and persuade, they further arouse public opposition rather than win support.

When political and business leaders tell the public - any public - 'We don't trust you to make the right decision' - they prejudice that electorate against the very proposals they want it to accept and undermine public confidence in themselves.

We had some major successes and we did so because the country embraced the spirit of Earth Day and embraced this concept that we have to have forward-looking, visionary environmental policy and energy policy in this country.

Though every nation must do its part to address climate change, developed nations are responsible for the lion's share of carbon pollution in the atmosphere, and they have an obligation to help developing nations transition to a sustainable future.

With our evolved busy hands and our evolved busy brains, in an extraordinarily short period of time we've managed to alter the earth with such geologic-forcing effects that we ourselves are forces of nature. Climate change, ocean acidification, the sixth mass extinction of species.

Listen, I think we all believe that we need to take aggressive steps to mitigate the effects of climate change.