“Because we are saturated with life, because we are human, our strongest motive is life, humanity; and the stronger the motive back of the line the stronger, and therefore more beautiful, the line will be.”

“Love is eternal. It has been the strongest motivation for human actions throughout history. Love is stronger than life. It reaches beyond the dark shadow of death.”

“sometimes we still need people who insult us, because they are the greatest motivation in our life.”

“What's stronger-the need to uphold the law, or the motive to turn one's back on it?”

“We must never forget that human motives are generally far more complicated than we are apt to suppose, and that we can very rarely accurately describe the motives of another.”

“The only way of life satisfying the need of all times must be motivated by incentives and rewards – materially, morally and spiritually because motivation for work is produced by incentives and rewards only, an aspect built into the fundamental specification of human nature itself. Any prescription not recognising this important aspect of life is bound to fail in the life-styles of human beings.”