Earth Day is the first holy day...and is devoted to the harmony of nature... The celebration offends no historical calendar, yet it transcends them all.

‎ When a person is born we rejoice, and when they're married we jubilate, but when they die we try to pretend nothing has happened.

No society has ever yet been able to handle the temptations of technology to mastery, to waste, to exuberance, to exploration and exploitation... We have to learn to cherish this earth and cherish it as something that's fragile, that's only one, it's all we have... We have to use our scientific knowledge to correct the dangers that have come from science and technology.

Even very recently, the elders could say: 'You know, I have been young and you never have been old.' But today's young people can reply: 'You never have been young in the world I am young in, and you never can be.' ... the older generation will never see repeated in the lives of young people their own unprecedented experience of sequentially emerging change. This break between generations is wholly new: it is planetary and universal.

Never depend upon institutions or government to solve any problem. All social movements are founded by, guided by, motivated and seen through by the passion of individuals.

WE MUST DEVISE A SYSTEM IN WHICH PEACE IS MORE REWARDING THAN WAR.

In each age there is a series of pressing questions which must be asked and answered. On the correctness of the questions depends the survival of those who ask; on the quality of the answers depends the quality of the life those survivors will lead.