Plato, in Symposium quotes
"But, my dearest Agathon, it is truth which you cannot contradict; you can without any difficulty contradict Socrates."
Man who say it cannot be done should not interrupt man doing it.
The gem cannot be polished without friction, nor man perfected without trials.
"But, my dearest Agathon, it is truth which you cannot contradict; you can without any difficulty contradict Socrates."