Knowledge is but an instrument, which the profligate and the flagitious may use as well as the brave and the just.
You may be liberal in your praise where praise is due: it costs nothing; it encourages much.
The false man is more false to himself than to any one else. He may despoil others, but himself is the chief loser. The world's scorn he might sometimes forget, but the knowledge of his own perfidy is undying.
You may as well borrow a person's money as his time.
Genius may conceive but patient labor must consummate