Failure is the mother of success. It can inspire people to work hard and explore. ——[U.S.] Weiss W. Dai

It is not a bad thing, let alone a shame, for a person to take detours and make mistakes on the road of scientific exploration. He must be brave in practice Admit and correct mistakes. ——[Germany] Einstein

The harmonious application of observation and experience to life is wisdom. ——[Russian] Goncharov "Cliff"

In the field of observation. Opportunity favors only the prepared mind. ——[Fa] Pasteur

Knowledge itself does not teach people how to use them; this kind of application is a kind of intelligence other than and above knowledge, which can only be obtained through observation and experience. . ——[English] Bacon's "On Learning"

Genius is nothing but the ability to observe problems in an unconventional way. ——[American] William James

I don’t have the genius that others attribute to me. I just continued to observe and think about the object of my research, and focused my energy completely on the object of study, so I came to a certain conclusion. Anyone in my position would be a genius if he did the same thing. ——[Soviet] Pavlov

Originality - not observing something new for the first time, but taking something old, something that has been known for a long time, or something that everyone has turned a blind eye to. When new things are observed, this is evidence of a truly original mind. ——[Germany] Nietzsche

You must find an inseparable partner for your enthusiasm, and this partner is strict observation. ——[French] Pasteur

My only merit is that I did not neglect observation. ——[English] Fleming

All reasoning must be derived from observation and experiment. ——[Italian] Galileo