The truth of our faith becomes a matter of ridicule among the infidels if any Catholic, not gifted with the necessary scientific learning, presents as dogma what scientific scrutiny shows to be false.
Saint Thomas Aquinas

Three things are necessary for the salvation of man: to know what he ought to believe; to know what he ought to desire; and to know what he ought to do.
Saint Thomas Aquinas

Three conditions are necessary for Penance: contrition, which is sorrow for sin, together with a purpose of amendment; confession of sins without any omission; and satisfaction by means of good works.
Saint Thomas Aquinas

In order for a war to be just, three things are necessary. First, the authority of the sovereign. Secondly, a just cause. Thirdly, a rightful intention.
Saint Thomas Aquinas

What with making their way and enjoying what they have won, heroes have no time to think. But the sons of heroes - ah, they have all the necessary leisure.
Aldous Huxley

To succeed in business it is necessary to make others see things as you see them.
Aristotle Onassis

Collecting more taxes than is absolutely necessary is legalized robbery.
Calvin Coolidge

I have learned that only two things are necessary to keep one's wife happy. First, let her think she's having her own way. And second, let her have it.
Lyndon B. Johnson

Only two things are necessary to keep one's wife happy. One is to let her think she is having her own way, and the other is to let her have it.
Lyndon B. Johnson

Before a man speaks it is always safe to assume that he is a fool. After he speaks, it is seldom necessary to assume it.
H. L. Mencken

Preach the Gospel at all times and when necessary use words.
Francis of Assisi

Start by doing what's necessary; then do what's possible; and suddenly you are doing the impossible.
Francis of Assisi

Men like me are impossible until the day when they become necessary.
Victor Hugo

It is often necessary to know how to obey a woman in order sometimes to have the right to command her.
Victor Hugo

Religions do a useful thing: they narrow God to the limits of man. Philosophy replies by doing a necessary thing: it elevates man to the plane of God.
Victor Hugo

To be perfectly happy it does not suffice to possess happiness, it is necessary to have deserved it.
Victor Hugo

It is necessary to keep one's compass in one's eyes and not in the hand, for the hands execute, but the eye judges.
Michelangelo

Cultivation to the mind is as necessary as food to the body.
Marcus Tullius Cicero

Death is not natural for a state as it is for a human being, for whom death is not only necessary, but frequently even desirable.
Marcus Tullius Cicero

There are no necessary evils in government. Its evils exist only in its abuses.
Andrew Jackson