Нужен текст на тему a healthy mind in a healthy body

Juvenal's phrase became popular after it was repeated the English philosopher John Locke (1632-1704) French writer and educator Jean-Jacques Rousseau (1712-1778). All authors proceeded from the fact that having a healthy body does not guarantee the presence of a healthy mind. Instead, they talked about what should aspire to this harmony, because in reality it is rare. Allegorically about striving for the harmonious development of man. 
Thus, the traditional understanding of this popular expression is the exact opposite initially invest in it sense: people see the second part as a consequence of the first. It would be better to say that the author of this saying tried to formulate the idea of ​​the harmonious development of man, which is inherent in the one and the other.