To any white body receiving the light from the sun, or the air, the shadows will be of a bluish cast.

Truth at last cannot be hidden. Dissimulation is of no avail. Dissimulation is to no purpose before so great a judge. Falsehood puts on a mask. Nothing is hidden under the sun.

Although nature commences with reason and ends in experience it is necessary for us to do the opposite, that is to commence with experience and from this to proceed to investigate the reason.

The truth of things is the chief nutriment of superior intellects.

Just as iron which is not used grows rusty, and water putrefies and freezes in 41 the cold, so the mind of which no use is made is spoilt.

The poet ranks far below the painter in the representation of visible things, and far below the musician in that of invisible things.

All objects transmit their image to the eye in pyramids and the nearer to the eye these pyramids are intersected the smaller will the image appear of the objects which cause them.

Avoid the precepts of those thinkers whose reasoning is not confirmed by experience.

To enjoy, to love a thing for its own sake and for no other reason.

The faculty of imagination is both the rudder and the bridle of the senses.