The history of harmony is the history of the development of the human ear, which has gradually assimilated, in their natural order, the successive intervals of the harmonic series.

As far as the execution is concerned ... the most frequent and most serious mistake is to follow the music instead of preceding it.

Loving a child doesn't mean giving in to all his whims; to love him is to bring out the best in him, to teach him to love what is difficult.

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.

The essential conditions of everything you do must be choice, love, passion.

Without order there can be no inner satisfaction. Without inner satisfaction there can be no freedom. Without freedom there is no joy.

The Constitution of the United States is not a mere lawyers' document; it is a vehicle of life, and its spirit is always the spirit of the age.