Once, Socrates and three students walked through a field of wheat, and he asked the students to walk over here to pick the largest ear of wheat  As a result, one student returned empty-handed  He always thought that the largest ear of wheat must still be in front  He didn't realize that the end of the wheat was still empty
One ear, but there is a bigger one ahead; only the last student picked a very large ear of wheat, although not necessarily the largest, but his results were satisfactory
Life is thought, thought comes from the reality of life