"What could we accomplish if we knew we could not fail?

You wouldn't worry so much about what others think of you if you realized how seldom they do.
You wouldn't worry so much about what others think of you if you realized how seldom they do.
You wouldn't worry so much about what others think of you if you realized how seldom they do.
You wouldn't worry so much about what others think of you if you realized how seldom they do.