Let us develop respect for all living things. Let us try to replace violence and intolerance with understanding and compassion. And love.

We can learn to suppress our feelings for other reasons.

I believe that the tragedy [like terror attack] that's caused so much grief and suffering to so many thousands and thousands of people has also served as a call to action, because many people now are re-examining their own value systems, and the churches, temples, mosques and cathedrals are packed to overflowing for the first time in years.

I don't even think of chimps as animals. I think of them as beings.

I believe that we have more capability than any other creature to control our biological inheritance - and we do so most of the time.

In a very unscientific statement, I feel that there's been a disconnect between this clever brain and the heart.

I want to change awareness.