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Ethics Quote by Immanuel Kant

“The whole interest of my reason, whether speculative or practical, is concentrated in the three following questions: What can I know? What should I do? What may I hope? (Critique of Pure Reason” quote by Immanuel Kant
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““The whole interest of my reason, whether speculative or practical, is concentrated in the three following questions: What can I know? What should I do? What may I hope? (Critique of Pure Reason””

Immanuel Kant

About This Quote

Source Book: Critique of Pure Reason, 1781

Kant frames philosophy around three fundamental questions: knowledge, duty, and hope, linking epistemology, ethics, and existential outlook.

In simple terms: Kant asks what we can know, should do, and hope for.

Key Takeaway

Consider knowledge, duty, and hope together.

Themes

philosophy ethics epistemology

Mood

thoughtful inquisitive

Type

philosophical inspirational

When to use this quote

  • academic study
  • personal decision‑making
  • goal setting
  • life planning
  • moral reflection

Key Concepts

knowledge moral duty hope human purpose

Questions to Reflect On

  • What limits our ability to know?
  • How do we balance duty and hope?
A Different Perspective

These questions may oversimplify complex realities.

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