The only ones among us who will be really happy are those who have sought and found how to serve. - Albert Schweitzer

The only really happy people are those who have learned how to serve.

The ethic of Reverence for Life is the ethic of Love widened into universality.

Reverence for life, veneratio vitæ, is the most direct and at the same time the profoundest achievement of my will-to-live. In reverence for life my knowledge passes into experience. The simple world- and life-affirmation which is within me just because I am will-to-live has, therefore, no need to enter into controversy with itself, if my will-to-live learns to think and yet does not understand the meaning of the world. In spite of the negative results of knowledge, I have to hold fast to world- and life-affirmation and deepen it. My life carries its own meaning in itself. This meaning lies in my living out the highest idea which shows itself in my will-to-live, the idea of reverence for life. With that for a starting-point I give value to my own life and to all the will-to-live which surrounds me, I persevere in activity, and I produce values.

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.