In the sixth a man's mind is now disciplined in everything

From Ancient Greece: Social and Historical Documents from Archaic Times to the Death of Alexander the Great by Matthew Dillon and Lynda Garland 

4.105 Solon 27: The Ten Ages of Man

The youthful boy loses the first row of teeth

He grew while a baby in seven years;

When god has completed the next seven years for him

He shows the signs that his youthful prime is on its way;

In the third seven, while his limbs are still growing

His chin grows downy with the bloom of changing skin.

In the fourth seven every man is at his best

In strength, when men give proof of valour.

In the fifth it is time for a man to think of marriage.

And seek a family of children to come after him.

In the sixth a man's mind is now disciplined in everything,

And he no longer wishes to do reckless deeds.

In the seventh he is now at his best in mind and tongue,

And in the eighth, that is fourteen years in total.

In the ninth he is still able, but less powerful than before

In both his speech and wisdom in matters of great prowess.

And if anyone comes to complete the tenth in full measure,

He will not meet the fate of death unseasonably.