It's no more than a platitude.

无非是老生常谈。

《新英汉大辞典》

The talk is no more than a platitude.

这番话无非是老生常谈。

《新英汉大辞典》

Some would say that this is a platitude.

有人会认为这是陈腔滥调。

youdao

When Aristotle says that man is a political animal by nature, he is doing more than simply asserting just a truism or just some platitude.

当亚里士多德说,人类天生是政治动物，他的主张,不只是老生常谈,或是陈腔滥调。

耶鲁公开课 - 政治哲学导论课程节选

It used to be a platitude of Western and Marxist analysis of China that wrenching economic change would demand political reform.

ECONOMIST: China and India

The idea that the kids are whizzes at multimedia tasking is a platitude confected by middle-aged techno gurus to peddle their expertise as explainers of generational difference.

FORBES: Medialand

It is now time for the industry to take a leadership role in addressing any lingering safety concerns so that we may finally make energy independence a reality, not just a platitude.

FORBES: U.S. Energy Independence - So Close, Yet So Far