Science has in fact two aspects. Day science involves reasoning as articulated as gears, results that have the strength of certainty. Aware of its style, proud of its past, sure of its future, the science of days advances in the light.
Night Science, on the contrary, wanders in the dark. It hesitates, stumbles, falls. Questioning everything, it is searching itself endlessly, combining, associating myriads of hypothesis, assumptions still in the form of vague hunches, projects barely taken shape.
Nothing guarantees its successes, its ability to survive the tests of Logic and experiments, but sometimes thanks to intuition, instinct and the will to discover, as a lightning it illuminates more than a thousand suns….
Taken from François Jacob, The Statute Within, 1985.