“You are capable of more than you know. Choose a goal that seems right for you and strive to be the best, however hard the path. Aim high. Behave honorably. Prepare to be alone at times, and to endu...”

“If those committed to the quest fail, they will be forgiven. When lost, they will find another way. The moral imperative of humanism is the endeavor alone, whether successful or not, provided the e...”

“Nature holds the key to our aesthetic, intellectual, cognitive and even spiritual satisfaction.”

“When you have seen one ant, one bird, one tree, you have not seen them all.”

“Political ideology can corrupt the mind, and science.”

“Blind faith, no matter how passionately expressed, will not suffice. Science for its part will test relentlessly every assumption about the human condition.”

“The fool doth think he is wise, but the wise man knows himself to be a fool.”

“The secret of life, though, is to fall seven times and to get up eight times.”

“It is the mark of an educated mind to be able to entertain a thought without accepting it.”

“The weight of the world is a trifle, if we all put our two fingers under it and try to lift together.”

“If we stick together as an American people we can bring down the war criminals that are running our country right now.”

“I have probably purchased fifty 'hot tips' in my career, maybe even more. When I put them all together, I know I am a net loser.”

“They had killed themselves over our dying forests, over manatees maimed by propellers as they surfaced to drink from garden hoses; they had killed themselves at the sight of used tires stacked high...”

“The world seemed to shimmer a little at the edges.”

“If we cannot accept the importance of the world, which considers itself important, if in the midst of that world our laughter finds no echo, we have but one choice: to take the world as a whole and...”