Freedom is not constituted primarily of privilege but of responsibilities.
Among the special duties to others, the first is Truthfulness in speech and action.
There is only one science to teach to children. It is that of man's duties.
Love is a better teacher than duty.
I know of only one duty, and that is to love.
Health is the primary duty of life.
Freedom has been wholly interpreted as a right, as a thing which people are entitled to claim, whereas what it really is above all is an obligation and a duty.
It is much easier to obey your superior than to command yourself; and when you can do whatever you want, it's not easy to want only what you have to.
A man left alone in the universe would have no rights whatever, but he would have obligations.
The duty of man is the same in respect to his own nature as in respect to the nature of all other things, namely not to follow it but to amend it.
All the great things are simple, and many can be expressed in a single word: freedom, justice, honor, duty, mercy, hope.
Defending the truth is not something one does out of a sense of duty or to allay guilt complexes, but is a reward in itself.
A sense of duty is useful in work but offensive in personal relations. People wish to be liked, not to be endured with patient resignation.
What can I know? What ought I to do? What can I hope?
Infinite striving to be the best is man's duty; it is its own reward. Everything else is in God's hands.
Non-cooperation with evil is as much a duty as is cooperation with good.
Fear is not a lasting teacher of duty.
Love can do much, but duty more.