I loved your country [America] before I knew it.

The Pole listening to Chopin listens to the voice of his whole race.

Times change, people change, thought and feeling take new shapes, put on fresh garments, sons bow their heads unwillingly to that which enraptured their fathers.

If I miss one day of practice, I notice it. If I miss two days, the critics notice it. If I miss three days, the audience notices it.

Intellectual isolation always follows commercial isolation.

If I do not practice one day; I know it. If I do not practice the next, the orchestra knows it; if I do not practice the third day, the whole world knows it.

When I miss a week in practice, my audience knows it. When I miss a day, I know it.