Nothing in this world can take the place of persistence. Talent will not: nothing is more common than unsuccessful men with talent.
Calvin CoolidgeThe door of opportunity swings wide open in our country. Through it, in constant flow, go those who toil. America recognizes no aristocracy save those who work. The badge of service is the sole requirement for admission to the ranks of our nobility.
Calvin CoolidgeIndustry, thrift and self-control are not sought because they create wealth, but because they create character.
Calvin Coolidge