It is those who concentrates on but one thing at a time who advance in this world. The great man or woman is the one who never steps outside his or her specialty or foolishly dissipates his or her individuality.

Do the very best that you can, in the things you do best, and you will know in thy soul, that you are the greatest success in the world.

Always do your best. What you plant now, you will harvest later.

If the ingredients for happiness are not within a person, no material success or entertainment or platinum credit cards can make that person smile.

I will commit not the terrible crime of aiming too low. I will do the work that a failure will not do. I will always let my reach exceed my grasp.

He who worries about calamities suffers them twice over.

I'd rather learn how to prevent failure than how to gain success, because for what is success other than a state of mind?