„Happy Together. Using the Science of Positive Psychology to Build Love That Lasts” written by Suzann Pileggi Pawelski, James Pawelski.

„What, then, does make a couple happy together over the long term? What is the key to build love lasts?” (p.10).

„… research supporting three key activities for flourishing: cultivating positive emotions in your daily life, developing a harmonious or healthy passion, and remembering to seek out and celebrate the good time rather then just focusing on fixing problems” (p.12)

„the power fight against unhappiness doesn’t automatically produce happiness” (p.16).

„Positive psychology is a science that focuses on human strengths and potential and celebrate what’s best in life. It emphasizes goals, well-being, satisfaction, happiness, interpersonal skill, perseverance, taken, wisdom, and personal responsibility” (p.16).