The most important thing in life is to stop saying 'I wish' and start saying 'I will.' Consider nothing impossible, then treat possibilities as probabilities.
Art, especially the stage, is an area where it is impossible to walk without stumbling. There are in store for you many unsuccessful days and whole unsuccessful seasons: there will be great misunderstandings and deep disappointments… you must be prepared for all this, expect it and nevertheless, stubbornly, fanatically follow your own way.
Don't waste life in doubts and fears; spend yourself on the work before you, well assured that the right performance of this hour's duties will be the best preparation for the hours and ages that will follow it.