"That which has been believed by everyone, always and everywhere, has every chance of being false"

This quote by Paul Valery is a tip that even if something is extensively accepted, it does not necessarily make it real. Valery is cautioning us to be important thinkers and to question the status quo. He is recommending that we ought to not take whatever at stated value, but instead, we should be open to the possibility that what is commonly accepted might not be true. Valery is encouraging us to think for ourselves and to not hesitate to challenge the beliefs of the majority. He is advising us that even if something is commonly accepted, it does not mean it is true. We need to be open to the possibility that what is widely accepted may be false.