D.

“Albert Einstein once described his rules of work: “One: Out of clutter, find simplicity. Two: From discord, find harmony. Three: In the middle of difficulty lies opportunity.”
― Phil Jackson, Sacred Hoops: Spiritual Lessons of a Hardwood Warrior

“The surest way to raise mentally healthy children is to cultivate loving, nurturing, and mutually respectful relationships with them. Loving means, first of all, accepting your child as a person. Every child has strengths and weaknesses, gifts and challenges. Loving means adjusting your expectations to fit your child, not trying to adjust your child to fit your expectations.”
― Benjamin Spock, Dr. Spock's Baby and Child Care

“Always run to the short way; and the short way is the natural: accordingly say and do everything in conformity with the soundest reason. For such a purpose frees a man from trouble, and warfare, and all artifice and ostentatious display.”
― Marcus Aurelius, Meditations

“It is madness to risk losing what you need in pursuing what you simply desire.”
― Warren Buffett, The Essays of Warren Buffett : Lessons for Corporate America