I have solved what color is, however ; I still have no idea about what line is.

Things that are separate shall be united and acquire such virtue that they will restore to man his lost memory.

There are many kinds of beauty as people who possess it.

All the elements will be seen mixed together in a great whirling mass, now borne towards the centre of the world, now towards the sky; and now furiously rushing from the South towards the frozen North, and sometimes from the East towards the West, and then again from this hemisphere to the other.

I have discovered that a screw-shaped device such as this, if it is well made from starched linen, will rise in the air if turned quickly.

Each man is always in the middle of the surface of the earth and under the zenith of his own hemisphere, and over the centre of the earth.

Make an effort to collect the good features from many beautiful faces.

The grave will fall in upon him who digs it.

Painting is concerned with the ten things you can see: these are darkness and brightness, substance and color, form and place, remoteness and near ness, movement and rest.

I am not to blame for putting forward, in the course of my work on science, any general rule derived from a previous conclusion.