The whole duty of a conductor ...

The whole duty of a conductor is comprised in his ability to indicate the right tempo.
The whole duty of a conductor is comprised in his ability to indicate the right tempo.
 Richard Wagner

More phrases

All the great things are simple, and many can be expressed in a single word: freedom, justice, honor, duty, mercy, hope.
I know but one freedom and that is the freedom of the mind.
 Antoine de Saint-Exupéry
Freedom is not worth having if it does not connote freedom to err.
The amount of happiness that you have depends on the amount of freedom you have in your heart.
 Thích Nhất Hạnh
Without freedom of thought, there can be no such thing as wisdom - and no such thing as public liberty without freedom of speech.

Quotes from the same author

If experiments on animals were abandoned on grounds of compassion, mankind would have made a fundamental advance.
 Richard Wagner
The essence of higher instrumental music lays herein that one is able to express in tones that what one is unable to say in words.
 Richard Wagner
I know absolutely nothing about music.
 Richard Wagner
The language of tones belongs equally to all mankind, and melody is the absolute language in which the musician speaks to every heart.
 Richard Wagner
I am fond of them, of the inferior beings of the abyss, of those who are full of longing.
 Richard Wagner