The secret to success is constancy of purpose.

Benjamin Disraeli

I don’t sell future for instant success.

Werner von Siemens

The art of making plans consists of pre-empting the difficulties of its completion.

Luc de Clapiers, Marqius des Vauvenargues

Success is a law of the series, and failures are in between results. Who continues can not avoid to be successful one day.

Thomas Alva Edison

Rather decide almost right than exactly wrong.

Johann Wolfgang von Goethe

Planning without execution is mostly useless - execution without planning is mostly fatal.

Willy Meurer

Many people are persistent in relation of the path they have taken, only few in concern of their goal.

Friedrich Nietzsche

You can’t build up a reputation on what you are going to do.

Henry Ford

When everything seems to be going against you, remember that the airplane takes off against the wind, not with it.

Henry Ford