Skip to content

Biology Quote by Jacques Monod

“Evolution in the biosphere is therefore a necessarily irreversible process defining a direction in time; a direction which is the same as that enjoined by the law of increasing entropy, that is to say, the second law of thermodynamics. This is far more than a mere comparison: the second law is…” quote by Jacques Monod
Download Open image
“Evolution in the biosphere is therefore a necessarily irreversible process defining a direction in time; a direction which is the same as that enjoined by the law of increasing entropy, that is to say, the second law of thermodynamics. This is far more than a mere comparison: the second law is founded upon considerations identical to those which establish the irreversibility of evolution. Indeed, it is legitimate to view the irreversibility of evolution as an expression of the second law in the biosphere.”

Jacques Monod

About This Quote

Source Speech: Scientific Lecture on Thermodynamics, 1970s

Evolution's irreversibility mirrors the second law of thermodynamics, linking biological change to entropy increase.

In simple terms: Evolution and entropy both move in one direction.

Key Takeaway

Recognize that change is inherently directional.

Themes

science entropy evolution

Mood

thoughtful analytical

Type

scientific educational

When to use this quote

  • research discussions
  • environmental policy
  • education curricula

Key Concepts

thermodynamics irreversibility entropy increase

Questions to Reflect On

  • How does entropy shape biological diversity?
  • Can we influence evolutionary pathways?
A Different Perspective

Complex systems may have local reversals that seem to contradict the trend.

4.5 out of 5 (3 ratings)

More by Jacques Monod

Explore all 35 Jacques Monod quotes

More Biology quotes

Browse all 3,033 Biology quotes