„Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.“
— Albert Schweitzer French-German physician, theologian, musician and philosopher 1875 - 1965
— Bill Cosby American actor, comedian, author, producer, musician, activist 1937
Originally from Herbert Bayard Swope (1882-1958); often attributed to Cosby, he actually cites this as a sound advice he once read elsewhere, in "Dr. Bill Cosby" in Ebony, Vol. 32, No. 8 (June 1977), p. 136
— Alexander Graham Bell scientist and inventor known for his work on the telephone 1847 - 1922
As quoted in Sophia's Fire (2005) by Sango Mbella, p. 133.
— Nayef Al-Rodhan philosopher, neuroscientist, geostrategist, and author 1959
— Michael O'Donoghue American actor and writer 1940 - 1994
„“Trust is the foundation of all life’s relationships. It is an essential ingredient in successful leadership. It is not something we are entitled to, either. You have to earn it.”“
— Don Soderquist 1934 - 2016
Don Soderquist “ Live Learn Lead to Make a Difference https://books.google.com/books?id=s0q7mZf9oDkC&lpg=pg=PP1&dq=Don%20Soderquist&pg=PP1#v=onepage&q&f=false, Thomas Nelson, April 2006 p. 153.
„I cannot forecast to you the action of Russia. It is a riddle wrapped in a mystery inside an enigma; but perhaps there is a key. That key is Russian national interest. “
— Winston S. Churchill Prime Minister of the United Kingdom 1874 - 1965