Marston knew and it was also proven to be correct in many later scientific researches that our feelings and behaviour are influenced by our thoughts on the world and the situations we find ourselves in.
Marston teadis ja see sai kinnitust ka paljudes hilisemates teadustöödes, et meie tundeid ja käitumist mõjutavad meie mõtted maailmast ja situatsioonidest, kus oleme.