“Every one can be part of the solution.”

“We only have one life to be proud of!”

“Science at the servie of what is meaningful”

“Our fate is inseparable from that of the environment.”

“The future is not what will happen but what we will do.”

“Doing things properly without taking oneself too seriously”

“Life is a mystery to be lived and not a problem to be solved.”

“They didn’t know it was impossible, so they did it.”

“If not now, then when?”