Nothing is so honorable as a great soul; but that soul is not great which can be shaken by either fear or grief.
Seneca's De Clementia, book ii, chap, v, sec. 4;
The wise man will always know how to help the suffering. But sorrow prevents us from making distinctions, finding out what is useful, avoiding what is dangerous, and deciding what is just ; and, therefore, he will not himself yield to sorrow. He will do everything that could be done by the sympathetic, but he will do it calmly and cheerfully.
Seneca's De Clementia, book ii, chap, vi, sec. I.
Seneca's Naturalium Quaestionum, book iii, praef., sec. 12.