내가 기억하는 한에는 성경에 지능을 칭찬하는 구절은 한 마디도 없었다. (버트런드 러셀)

과학이 지식을 제한할 수는 있으나 상상력을 제한해서는 안 된다. (버트런드 러셀)

쓸데 없는 지식에서도 큰 기쁨을 얻을 수 있다. (버트런드 러셀)

(The happiness of a man in his life does not consist in the absence but in the mastery of his passions)

- Alfeed Tennyson

(The secret of happiness is to make others believe they are the cause of it) - Al Batt

 가치 있는 목적에 충실함으로써 이루어진다."

(Many persons have a wrong idea of what constitutes true happiness. It is not attained through self-gratification but through fidelity to a worthy purpose)

 - Helen Keller

(The happiness of a man in his life does not consist in the absence but in the mastery of his passions) - Alfeed Tennyson

(Happiness is the meaning and the purpose of life, the whole aim and end of human existence) - Aristotle