A painter without a brush is like a weasel without a tongue - Leonardo da Vinci

Marriage is like putting your hand into a bag of snakes in the hope of pulling out an eel.

Weight, force and casual impulse, together with resistance, are the four external powers in which all the visible actions of mortals have their being and their end.

The spirit has no voice, because where there is a voice there is a body, and where there is a body space is occupied, and this prevents the eye from seeing what is placed behind that space; hence the surrounding air is filled by the body, that is by its image.