If there is something very slightly wrong in our definition of the theories, then the full mathematical rigor may convert these errors into ridiculous conclusions.
Richard P. FeynmanWe have found it of paramount importance that in order to progress, we must recognize our ignorance and leave room for doubt.
Richard P. FeynmanFor a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.
Richard P. Feynman