Sigmund Freud，出生于1856年，是奥地利的精神病医生，他是现代心理学的创始人之一，也是精神分析法的奠基人。他的理论对心理学、医学和文学产生了深远的影响。

以下是弗洛伊德的一些经典语录：

1. "The unconscious is always right."
2. "Everyone has a pair of primal parents in their mind."
3. "The mind is like a muscle; it can be trained and strengthened."
4. "The greatest happiness is the most rational."
5. "The more we know, the less we know that we know."
6. "The real problem is not to find solutions, but to find the problem."
7. "The purpose of therapy is to free the soul from the weight of the past."
8. "The mind is a machine, and like any machine, it requires maintenance."
9. "The only thing that is stopping us from being happy is ourselves."
10. "The difference between what we know and what we think we know is the source of our suffering."

这些语录反映出弗洛伊德对人类心理和行为的深刻洞察，他强调了人类自我探索和心理治疗的重要性。弗洛伊德的理论和思想在心理学、精神医学和文学等领域产生了广泛的影响，至今仍被许多人引用和探讨。