I never did anything worth doing by accident, nor did any of my inventions come by accident; they came by work.
Happiness is only for the honest-thatβs a law that runs through matter as undetectable as gravity
I am not discouraged, because every wrong attempt discarded is another step forward.
If we did all the things we are capable of doing, we would literally astound ourselves.
Genius is one per cent inspiration and ninety-nine per cent perspiration.
