"One man cannot practice many arts with..." - Quote by Plato

“And isn't it a bad thing to be deceived about the truth, and a good thing to know what the truth is? For I assume that by knowing the truth you mean knowing things as they really are.”

“[M]ere knowledge of the truth will not give you the art of persuasion.”

“Don't ask a poet to explain himself. He cannot.”

“As a rule, the man who can do all things equally well is a very mediocre individual.”

“Let every man practise the trade which he best understands.”

“A special ability means a heavy expenditure of energy in a particular direction, with a consequent drain from some other side of life.”

“You build a successful life a day at a time.”

“It is a maxim, that those, to whom everybody allows the second place, have an undoubted title to the first.”

“Most people, who have quit smoking, have had at least one unsuccessful try in the past. It is not important how many times you try to quit. The only important thing is, that eventually you stay quit”