Truism in a sentence as a noun

That's a truism that doesn't bring any value to the conversation.

There's a reason for the Reddit truism:"Hire a lawyer, hit the gym, delete from Facebook.

Saying that a scientist is one who does science seems like a truism bordering on being tautological.

Perhaps the pattern is that these statements are emptily true: they're either truisms if taken literally, or miss the point otherwise.

A more reliable truism would be that "unnecessary magic is bad", but that brings us no closer to evaluating Rails.

[...] It is a profoundly erroneous truism, repeated by all copy-books and by eminent people when they are making speeches, that we should cultivate the habit of thinking of what we are doing.

The vast majority of projects are underestimated; that's a truism of software development.

But a lot of people seem to be able to do it with no effort...The reason why this is not true is simple: our organism is not a closed system, so this thermodynamics truism does not apply.

"First: A mans chief loyalty must be to the woman who has joined her life to his; to the children who call him father; and to the business which feeds and clothes and houses them all."A greater truism can hardly have been spoken.

Truism definitions

noun

an obvious truth