Truism (noun)

A statement that is obviously true and says nothing new or interesting.

Origin:

From the french word "vérité" meaning "truth".

Examples:

1. It is a truism that honesty is the best policy.
2. It"s a truism that time flies when you"re having fun.
3. The statement "Money can"t buy happiness" is a truism.
4. It is a truism that good things come to those who work hard.
5. The phrase "You can"t judge a book by its cover" is a truism.