A weathered birdcage glows with pale light beside a small dark dog on a muted grey-green surface.

Original artwork, not a still

The Substance of Man

Jean Rostand

Science had better not free the minds of men too much, before it has tamed their instincts.

Behind the line

What it means

Our interpretation.

The warning puts freedom of thought beside a need for self-control. Science might expand what people can think or do before their impulses become any wiser. The concern is that greater freedom could bring trouble if human instincts remain just as hard to manage.

Context reviewed

Share this quote