In nature there is no effect without cause; once the cause is understood there is no need to test it by experience.


In: Jean Paul Richter, The Literary Works of Leonardo da Vinci (Volume 2)


In nature there is no effect without cause; once the cause is understood there is no need to test it by experience.

In nature there is no effect without cause; once the cause is understood there is no need to test it by experience.

In nature there is no effect without cause; once the cause is understood there is no need to test it by experience.

In nature there is no effect without cause; once the cause is understood there is no need to test it by experience.