Take up one idea! Make that idea your life ,Think of it .Dream of it,live on that idea.Let the brain,muscles,nerves every part of your body be full of that idea and just leave every other idea alone.This is the way to success.
He who always thinks himself as weak will never become strong, but he who knows himself to be a lion, rushes out from the worlds meshes, as a lion from its cage.
Swami Vivekananda