changing one's opinion

changing one's mind

is important --- if in the last few years you haven't discarded a major opinion or acquired a new one, check your pulse. You may be dead.

If in the last few years you haven't discarded a major opinion or acquired a new one, check your pulse. You may be dead.

is often more courageous than sticking to it.

It often takes more courage to change one's opinion than to stick to it.

is wise --- the man who never alters his opinion is like standing water, and breeds reptiles of the mind.

The man who never alters his op.inion is like standing water, and breeds reptiles of the mind.

is natural --- Only the foolish and the dead never change their opinions.

Only the foolish and the dead never change their opinions.