Without discipline, there can be no freedom.

In music everything is prolonged, everything is edified, and when the enchantment has ceased, we are still bathed in its clarity; solitude is accompanied by a new hope between pity for ourselves - which makes us more indulgent and more understanding - and the certitude of finding something again, that which lives for ever in music.

Nothing is better than music; when it takes us out of time, it has done more for us than we have the right to hope for: it has broadened the limits of our sorrowful life, it has lit up the sweetness of our hours of happiness by effacing the pettinesses that diminish us, bringing us back pure and new to what was, what will be, what music has created for us.

It is nothing to succeed if one has not taken great trouble, and it is nothing to fail if one has done the best one could.

False notes can be forgiven, false music cannot.

[On being asked how it felt to be the first female conductor of the Boston Symphony:] I've been a woman for a little more than fifty years, and I've gotten over my original astonishment.

You should never listen to someone practice. That is their work and theirs alone.