I am a camera with its shutter open, quite passive, recording, not thinking. Christopher Isherwood
You can observe a lot by watching. Yogi Berra
In the field of observation, chance favours the prepared mind. Louis Pasteur
The power of accurate observation is commonly called cynicism by those who have not got it. George Bernard Shaw
People’s minds are changed through observation and not through argument. Will Rogers
Observation – activity of both eyes and ears. Horace Mann
Observation more than books and experience more than persons, are the prime educators. Amos Bronson Alcott