They are three P s: Purity, Patience and Perseverance. (SSS Vol.26)

Teach the children the three P s: Purity, Patience, Perseverance. Armed with these three qualities, they can protect the nation better than any army or atom bombs. When Truth and Righteousness are protected, the nation will be secure. Truth is God. This is true for all countries, everywhere, without regard to nationality or creed. Both Truth and Righteousness transcend barriers of space and time. (SSS Vol.27)