We need a new system of values, a system of the organic unity between humankind and nature and the ethic of global responsibility.

Peace is not unity in similarity but unity in diversity, in the comparison and conciliation of differences.

If what you have done yesterday still looks big to you. You haven't done much today.

I believe in the cosmos. All of us are linked to the cosmos. So nature is my god. To me, nature is sacred. Trees are my temples and forests are my cathedrals. Being at one with nature.

If not me, who? And if not now, when?

It seems that the most important thing about Reagan was his anti-Communism and his reputation as a hawk who saw the Soviet Union as an 'evil empire.'

When future generations judge those who came before them on environmental issues, they may conclude "they didn't know": let us not go down in history as the generations who knew, but didn't care

It is my firm belief that the infinite and uncontrollable fury of nuclear weapons should never be held in the hands of any mere mortal ever again, for any reason.

It is better to discuss things, to argue and engage in polemics than make perfidious plans of mutual destruction.

We had 10 years after the Cold War to build a new world order and yet we squandered them. The United States cannot tolerate anyone acting independently. Every US president has to have a war.

You cannot go to sleep with one form of economic system and wake up the next morning with another.

It's easy to get wrapped up in sharing everyday life with a partner. It's fun to get lost in love and romance. It's the best. But holding on to yourself while doing that is the most important thing.

I do believe the most important thing I can do now is to help young people understand the past and prepare for the future.

I've got certain responsibilities that I have to carry out in a very specific institution and in a specific moment in time.

All memories fashioned at the level of a child's eye were unreliable in scale.

You can keep your memory intact, preserve your brain's health, and minimize the risk of aging and senile dementia, things that are greatly feared as people grow older.

Everyone looks at your watch and it represents who you are, your values and your personal style.

The success of love is in the loving - it is not in the result of loving.

Call home at least once a week. It's a proven fact that we call home less the older we get. And that's wrong. It should be the other way around. As we get older, our parents get older.

The future is best decided by ballots, not bullets.

I consider nothing low but ignorance, vice, and meanness, characteristics generally found where the animal propensities predominate over the higher sentiments.