Quotes about Maybe

The scientific theorist is not to be envied. For Nature, or more precisely experiment, is an inexorable and not very friendly judge of his work. It never says Yes to a theory. In the most favorable cases it says Maybe, and in the great majority of cases simply No. If an experiment agrees with a theory it means for the latter Maybe, and if it does not agree it means No. Probably every theory will someday experience its No - most theories, soon after conception.

Probably means there's a good chance. Possibly means we might or we might not.