I've loved the stars too fondly to be fearful of the night. - Galileo Galilei

This [experimentation] is the custom—and properly so—in those sciences where mathematical demonstrations are applied to natural phenomena, as is seen in the case of perspective, astronomy, mechanics, music, and others where the principles, once established by well-chosen experiments, become the foundations of the entire superstructure.

It is only in order to shield your ignorance that you put the Lord at every turn to the refuge of a miracle.

Toda verdad es fácil de comprender una vez que ha sido descubierta, el problema es descubrirla