Military training teaches you that there are four strengths

Robert Kiyosaki ‏: Military training teaches you that there are four strengths: mental, emotional, physical and spiritual.

Rich Dad Poor Dad is the story of Robert Kiyosaki's financial education. He had two 'dads' - one his real dad, who was poor, and the other, his best friend's dad, who was on his way to becoming a very rich man.