I can live with doubt and uncertainty and not knowing. I think it is much more interesting to live not knowing than to have answers that might be wrong. If we will only allow that, as we progress, we remain unsure, we will leave opportunities for alternatives. We will not become enthusiastic for the fact, the knowledge, the absolute truth of the day, but remain always uncertain … In order to make progress, one must leave the door to the unknown ajar.
Richard P. FeynmanBut see that the imagination of nature is far, far greater than the imagination of man.
Richard P. FeynmanThere is no harm in doubt and skepticism, for it is through these that new discoveries are made.
Richard P. FeynmanMathematics is a language plus reasoning. It's like a language plus logic. Mathematics is a tool for reasoning.
Richard P. Feynman