A man of honour should never forget what he is because he sees what others are.

No' and 'Yes' are words quickly said, but they need a great amount of thought before you utter them.

There is no beauty unaided, no excellence that does not sink to the barbarous, unless saved by art.

There are certain inessential activities-moths of precious time-and it is worse to busy yourself with the trivial than to do nothing.

Knowledge without courage is sterile.

It is therefore an excellent device to acquire knowledge from everybody.

When everyone covets something, they are easily annoyed by it.