That is very high praise, which is given you by faithful witness.

The science [geometry] is pursued for the sake of the knowledge of what eternally exists, and not of what comes for a moment into existence, and then perishes.

No man should be angry with what is true.

The most beautiful motion is that which accomplishes the greatest results with the least amount of effort.

It is not noble to return evil for evil, at no time ought we to do an injury to our neighbors.

Aspiring minds must sometimes sustain loss.

Madness is a divine release of the soul from the yoke of custom and convention.