PhilosophersJulien Offray de La Mettrie

Julien Offray de La Mettrie

Man is a machine: the soul is only the working of the body.

MaterialismEnlightenment1709 · 1751 FranceSaint-Malo

Life

French physician and philosopher (Saint-Malo 1709 - Berlin 1751), a materialist. His writings caused scandal and forced him to exile, first in Holland and then at the court of Frederick II of Prussia. In Man a Machine (1747) he argues that the soul depends entirely on the state of the body, and that the human being is a machine like animals.

Main works

1745
Natural History of the Soul

Explains the phenomena of the soul by the organisation of the body.

1747
Man a Machine

Argues that man is a machine whose soul is only its working.

1748
Discourse on Happiness

Defends an ethics of pleasure and treats remorse as an effect of bodily organisation.

In his own words

« Let us therefore conclude boldly that man is a machine, and that in the whole universe there is but one substance differently modified. »
L'Homme-machine (1747)

Positions

click a row to see the evidence
Does God exist?God
AtheismTheism
Debated

He grants that a supreme Being is probable but useless in practice, and sympathetically reports the idea of a happier atheist world; he is mostly read as a cautious atheist.

La Mettrie, L'Homme-machine (1747)

Where does knowledge come from?Source of knowledge
Empiricism (from experience)Rationalism (from reason)
Stated

Only experience and observation must guide us in understanding man.

La Mettrie, L'Homme-machine (1747)

Is the mind more than matter?Mind and body
MaterialismDualism
Stated

The soul is only a name for the working of the organised body: man is a machine.

La Mettrie, L'Homme-machine (1747)

Are we truly free?Freedom
Determinism (no free will)Free will
Interpretation

If man is a machine, his acts follow from his organisation, not from a free soul.

La Mettrie, L'Homme-machine (1747)

What makes an action good?Basis of morality
Duty (deontology)Consequences (consequentialism)Character (virtue ethics)Other (divine law, relationships, value creation…)

Happiness, mostly pleasure and a clear conscience, is the aim of life; remorse is a prejudice to cure.

La Mettrie, Anti-Sénèque, ou Discours sur le bonheur (1748)