One never notices what has been done; one can only see what remains to be done.
Duty is the sublimest word in the language; you can never do more than your duty; you shall never wish to do less.
New occasions teach new duties.
There is nothing in the universe that I fear, but that I shall not know all my duty, or shall fail to do it.
Where it is a duty to worship the sun it is pretty sure to be a crime to examine the laws of heat.
Who escapes a duty, avoids a gain.
I declare my belief that it is not your duty to do anything that is not to your own interest. Whenever it is unquestionably your duty to do a thing, then it will benefit you to perform that duty.
We ought to use the best means we can to be well informed of our duty.
Duty is that mode of action on the part of the individual which constitutes the best possible application of his capacity to the general benefit.
Next to doing the right thing, the most important thing is to let people know you are doing the right thing.