rationalistic

It says it does not attempt to convert children to any religious ideology, but offers activities that “emphasize a scientific, rationalistic, non-superstitious worldview.”

They concentrated on old rationalistic aspects of politics.

If we’re going to turn human space exploration into displaced religion, at least let’s not dress it up as rationalistic entrepreneurialism.

Those are precisely the political moves that most parties of the left feel unable to make, owing to their consensual concept of politics and the rationalistic view that passions have to be excluded.

He recently wrote that systems science in China is "under a rationalistic grip, with the ‘scientific’ leg long and the democratic leg short."