Ella

“The fool doth think he is wise, but the wise man knows himself to be a fool.”
― William Shakespeare, As You Like It

“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.”
― Carl Sagan

“If we knew what it was we were doing, it would not be called research, would it?”
― Albert Einstein

“Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.”
― Albert Einstein