No great advance has been made in science, politics, or religion without controversy.

In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion.

When religion and politics travel in the same cart, the riders believe nothing can stand in their way. Their movements become headlong - faster and faster and faster. They put aside all thoughts of obstacles and forget the precipice does not show itself to the man in a blind rush until it's too late.

Religion hinges upon faith, politics hinges upon who can tell the most convincing lies or maybe just shout the loudest, but science hinges upon whether its conclusions resemble what actually happens

Never chase a lie. Let it alone, and it will run itself to death. I can work out a good character much faster than anyone can lie me out of it.

Eloquence is logic on fire.