808  Few things are impossible to diligence and skill. Great works are performed not by strength, but perseverance.

724  [Drink] provokes the desire, but it takes away the performance.

716  The essence of all jokes, of all comedy, seems to be an honest or well intended halfness; a non performance of that which is pretended to be performed, at the same time that one is giving loud pledges of performance. The balking of the intellect, is comedy and it announces itself in the pleasant spasms we call laughter.

604  That which we persist in doing becomes easier, not that the task itself has become easier, but that our ability to perform it has improved.

217  We are face to face with our destiny and we must meet it with high and resolute courage. For us is the life of action, of strenuous performance of duty; let us live in the harness, striving mightily; let us rather run the risk of wearing out than rusting out.