Acid Quote by Justus von Liebig
“There are various causes for the generation of force: a tensed spring, an air current, a falling mass of water, fire burning under a boiler, a metal that dissolves in an acid-one and the same effect can be produced by means of all these various causes. But in the animal body we recognise only one cause as the ultimate cause of all generation of force, and that is the reciprocal interaction exerted on one another by the constituents of the food and the oxygen of the air. The only known and ultimate cause of the vital activity in the animal as well as in the plant is a chemical process.”
About This Quote
Source Book: Organic Chemistry Principles, Justus von Liebig, 1840
The ultimate source of energy in living organisms is the chemical interaction between food and oxygen, not mechanical forces.
In simple terms: Food and oxygen drive life’s energy.
Key Takeaway
Focus on nutrition and respiration.
Themes
biology
chemistry
energy
physiology
Mood
analytical
scientific
Type
educational
informational
When to use this quote
- diet planning
- exercise physiology
- medical research
- environmental health
Key Concepts
metabolism
chemical reactions
cellular respiration
Questions to Reflect On
- How does diet affect cellular energy?
- What role does oxygen play in metabolism?
A Different Perspective
Neglects non‑chemical influences like sunlight or mechanical stress.
