It is to be steady on the words, strong in religion and opinion, about business being brave, courage and patient. A person who doesn't have firmness in the heart has use neither to himself nor to others. Because such a person doesn't hold works properly and succeed them, he isn't preserving, he follows the words of anybody and can not free himself from the flow of doubt and confusion.

 If it is searched, some objections can be found even about the most suitable deeds. So when an action will be taken, it should be examined according to time and situation, if the goodness and acceptable sides of it are less than its drawbacks one should abandon it but if they are more, he should attempt to this action and be preserving till the end. Meanwhile the drawbacks are to be removed.

 To attain goals is only possible by this way. Mostly the basis of success in works is stability and firmness. But they are not to be confused with obstinacy. (1)

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(1) Description of Ethics, Ahmet Rifat