1, the real scientist should be a dreamer, not a dreamer, but a man who can only call himself a practitioner (Balzac).

2. Fantasy combined with wisdom is the mother of art and the source of miracles (Goya)

3. People who live in fantasy are like drunkards, with trembling hands and nothing to do (Edison)

4. We can regard fantasy as a traveling companion, but we must ask reason to be the guide (Sai Johnson).