Oh! Speculators on things, boast not of knowing the things that nature ordinarily brings about; but rejoice if you know the end of those things which you yourself device.

Every now and then go away, have a little relaxation, for when you come back to your work your judgment will be surer.

Anyone who invokes authors in discussion is not using his intelligence but his memory.

Given the cause nature produces the effect in the briefest manner that it can employ.

Abbreviators do harm to knowledge and to love.

... we might say that the earth has a spirit of growth; that its flesh is the soil, its bones the arrangement and connection of the rocks of which the mountains are composed, its cartilage the tufa, and its blood the springs of water.

Study without desire spoils the memory, and it retains nothing that it takes in.