The human bird shall take his first flight,filling the words with amazement,all writings with his fame,and bringing eternal glory to those whose nest… - Leonardo da Vinci

Those who, in debate, appeal to their qualifications, argue from memory, not from understanding.

The painter will produce pictures of little merit if he takes the works of others as his standard: but if he will apply himself to learn from the objects of nature he will produce good results. This we see was the case with the painters who came after the time of the Romans, for they continually imitated each other, and from age to age their art steadily declined.

It is easier to contend with evil at the first than at the last.