"There must be no barriers to freedom of inquiry … There is no place for dogma in science. The scientist is free, and must be free to ask any question, to doubt any assertion, to seek for any evidence, to correct any errors. Our political life is also predicated on openness. We know that the only way to avoid error is to detect it and that the only way to detect it is to be free to inquire. And we know that as long as men are free to ask what they must, free to say what they think, free to think what they will, freedom can never be lost, and science can never regress."

"One is never free except in relation to someone else. And when, the relation is based on happiness, it allows the greatest freedom in the world."

"As ambassadors of Jesus Christ, Christians have no choice but to join the movement of liberation on the side of the poor, fighting against the structures of injustice. Faith in Jesus Christ, therefore…"

"By incestuous symbiosis is meant the tendency to stay tied to the mother and to her equivalents — blood, family, tribe — to fly from the unbearable weight of responsibility, of freedom, of awareness, …"

"This young century will be liberty's century. By promoting liberty abroad, we will build a safer world. By encouraging liberty at home, we will build a more hopeful America. Like generations before us…"