George Orwell was certainly one for the pithy saying with a lot of punch, short and to the point. I came across a web page specializing in Orwelliana, and was struck by the number of comments that seemed to be remarkable encapsulations of powerful truths, as topical today (if not more so) as the day he wrote them.
Some of my favorites:
The high sentiments always win in the end, the leaders who offer blood, toil, tears, and sweat always get more out of their followers than those who offer safety and a good time. When it comes to the pinch, human beings are heroic.
To see what is in front of one's nose requires a constant struggle.
No advance in wealth, no softening of manners, no reform or revolution has ever brought human equality a millimeter nearer.
Whoever is winning at the moment will always seem to be invincible.
There is hardly such a thing as a war in which it makes no difference who wins. Nearly always one side stands more or less for progress, the other side more or less for reaction.
Early in life I had noticed that no event is ever correctly reported in a newspaper.
So much of left-wing thought is a kind of playing with fire by people who don't even know that fire is hot.
And this, from another website
War is evil, but it is often the lesser evil.