“you can't be value free when it comes to marriage”

“We have to abandon the conceit that isolated personal actions are going to solve this crisis. Our policies have to shift.”

“We can believe in the future and work to achieve it and preserve it, or we can whirl blindly on, behaving as if one day there will be no children to inherit our legacy. The choice is ours; the eart...”

“China has led the world in new tree planting; in fact, over the last several years, China has planted 40 percent as many tress as the rest of the world put together. Since 1981, all citizens of Chi...”

“If we don't succeed, we run the risk of failure.”

“Airplane travel is nature's way of making you look like your passport photo.”

“We all are travelers traveling on a very big spaceship called Earth. Let's not ruin the engines of our very own spaceship in the name of development.”

“A problem with global reasons cannot effectively be met with local measures.”

“Environmental radiation research is the rent I pay for living on this planet.”

“For example, the supporters of tariffs treat it as self-evident that the creation of jobs is a desirable end, in and of itself, regardless of what the persons employed do. That is clearly wrong. If...”

“It is not good for man to be kept perforce at all times in the presence of his species. A world from which solitude is extirpated is a very poor ideal. Solitude, in the sense of being often alone, ...”

“As technology accumulates and people in more parts of the planet become interdependent, the hatred between them tends to decrease, for the simple reason that you can't kill someone and trade with h...”

“Socialism in general has a record of failure so blatant that only an intellectual could ignore or evade it.”

“But Socialism, alone, can bring self-determination of their peoples.”

“Socialism, reduced to its simplest legal and practical expression, means the complete discarding of the institution of private property by transforming it into public property, and the division of ...”