Our chief usefulness to humanity rests on our combining power with high purpose. Power undirected by high purpose spells calamity, and high purpose by itself is utterly useless if the power to put it into effect is lacking.
As it must not, so genius cannot be lawless; for it is even that constitutes its genius - the power of acting creatively under laws of its own origination.
Great events ever depend but upon a single hair. The adroit man profits by everything, neglects nothing which can increase his chances; the less adroit, by sometimes disregarding a single chance, fails in everything.