Before anything else, preparation is the key to success.
Sometimes we stare so long at a door that is closing that we see too late the one that is open.
The most successful men in the end are those whose success is the result of steady accretion.
Concentrate all your thoughts upon the work at hand. The sun's rays do not burn until brought to a focus.
When one door closes, another opens; but we often look so long and so regretfully upon the closed door that we do not see the one which has opened for us.