"If America wants to retain its position as a global power, its president must listen to the people and show strong leadership at this turning point in human history."

"Doing all we can to combat climate change comes with numerous benefits, from reducing pollution and associated health care costs to strengthening and diversifying the economy by shifting to renewable energy, among other measures."

"As parents, grandparents, uncles and aunts we need to start getting out into nature with the young people in our lives. Families play a key role in getting kids outside."

"Education has failed in a very serious way to convey the most important lesson science can teach: skepticism."

"Do not say, 'It is morning,' and dismiss it with a name of yesterday. See it for the first time as a newborn child that has no name."

"He that is of the opinion money will do everything may well be suspected of doing everything for money."

"Do not wait for favorable winds; take the oars and row toward your horizon. In this truth lies the bedrock of all virtue — an essential principle for the reflective life."

"Never seem wiser, nor more learned, than the people you are with. Wear your learning, like your watch, in a private pocket: and do not merely pull it out and strike it merely to show that you have one."