Learn English – Phrase/word that is a synonym to “Question Everything”


What are some phrase/word synonyms for the phrase 'Question Everything'. My friend came up with nullius in verba, which I really like, and I was wondering what others are out there?

Edit (from comments): Perhaps synonym was not a good word-my vocabulary is not the best. I am just looking for phrases that portray a similar idea. The context would be potential tattoo phrases.

Best Answer

Someone who questions is a skeptic. Dictionary.com:

1. a person who questions the validity or authenticity of something purporting to be factual.
2. a person who maintains a doubting attitude, as toward values, plans, statements, or the character of others.