That man is guilty of impertinence who considers not the circumstances of time, or engrosses the conversation, or makes himself the subject of his discourse, or pays no regard to the company he is in.
For there is but one essential justice which cements society, and one law which establishes this justice. This law is right reason, which is the true rule of all commandments and prohibitions. Whoever neglects this law, whether written or unwritten, is necessarily unjust and wicked.
Who does not know history's first law to be that an author must not dare to tell anything but the truth? And its second that he must make bold to tell the whole truth? That there must be no suggestion of partiality anywhere in his writings? Nor of malice?
Scurrility has no object in view but incivility; if it is uttered from feelings of petulance, it is mere abuse; if it is spoken in a joking manner, it may be considered raillery.
I do not now so much as wish to have the Strength of Youth again that I wish'd in Youth for the Strength of an Ox or Elephant. For it is our Business only to make the best Use we can of the Powers granted us by Nature.
Mathematics is an obscure field, an abstruse science, complicated and exact; yet so many have attained perfection in it that we might conclude almost anyone who seriously applied himself would achieve a measure of success.