It must be thoroughly ...

It must be thoroughly understood that war is a necessity, and that the more readily we accept it,the less will be the ardor of our opponents, and that out of the greatest dangers communities and individuals acquire the greatest glory.
It must be thoroughly understood that war is a necessity, and that the more readily we accept it,the less will be the ardor of our opponents, and that out of the greatest dangers communities and individuals acquire the greatest glory.
 Thucydides

More phrases

Courage - a perfect sensibility of the measure of danger, and a mental willingness to endure it.
 William Tecumseh Sherman
Feeling, in the broad sense of whatever is felt in any way, as sensory stimulus or inward tension, pain, emotion or intent, is the mark of mentality.
 Susanne Katherina Langer
In that period, we had the Cold War mentality imbued through us - the Post-war [environment] and the Cold War. I think we were reflecting some of that. This was before the Wall collapsed, etc.
 Stephen Mallinder
The kind of group mentality that we had lived under since the Second World War is starting to erupt, and the craving for individualism is now much stronger. It's not as taboo anymore, as it was when I was younger.
 Nicolas Winding Refn
I come out of a Cold War sensibility, a Cold War mentality, and during those Cold War years, I used to know, I thought, the answers to everything. And since the end of the Cold War, I'm just a dumb as everyone else.
 Jules Feiffer

Quotes from the same author

For men naturally despise those who court them, but respect those who do not give way to them.
 Thucydides
For men can endure to hear others praised only so long as they can severally persuade themselves of their own ability to equal the actions recounted: when this point is passed, envy comes in and with it incredulity.
 Thucydides
In general, the men of lower intelligence won out. Afraid of their own shortcomings and of the intelligence of their opponents, so that they would not lose out in reasoned argument or be taken by surprise by their quick-witted opponents, they boldly moved into action. Their enemies,on the contrary, contemptuous and confident in their ability to anticipate, thought there was no need to take by action what they could win by their brains.
 Thucydides
The bravest are surely those who have the clearest vision of what is before them, glory and danger alike, and yet notwithstanding go out to meet it.
 Thucydides
The absence of romance from my history will, I fear, detract somewhat from its interest; but if it be judged useful by those inquirers who desire an exact knowledge of the past as an aid to the interpretation of the future, which in the course of human things must resemble if it does not reflect it, I shall be content. In fine, I have written my work, not as an essay which is to win the applause of the moment, but as a possession for all time.
 Thucydides