Leave no stone unturned in your search for the truth and never assume you understand anything before you have studied it.
Attempting to change other people's viewpoints to agree with your own point of view of the world may appear to be noble; but in reality it isn't noble at all.
A wise man seeks to change his own ideas to agree with the truth; but a foolish man attempts to change the truth to agree with his own ideas.
A wise man waits until he has fully examined the facts before he draws any conclusions; a foolish man jumps to a conclusion before he has examined the facts and refuses to accept any facts that may disagree with it.
A wise man discovers the truth; a foolish man never will.