What makes men more stronger?

Yesterday, I watched advertising of Dove in the super bowl. As for me, it was a wonderful commercial advertising. It described that thirty children who were different race and country called "dad" and they together with their father all of the happy time.

What makes men stronger? It's love, father's love. Men will be generous and considerate instead of selfish after they have a kid, which is unbelievable. 

Men, a amazing species, can become more and more stronger due to love.