If you want to know who controls you, look at who you are not allowed to criticize.

Appreciation is a wonderful thing: It makes what is excellent in others belong to us as well.

Now is not the time for making new enemies.

History in general is a collection of crimes, follies, and misfortunes among which we have now and then met with a few virtues, and some happy times.

Life is a shipwreck but we must not forget to sing in the lifeboats.

History is but the record of crimes and misfortunes. L'histoire n'est que le tableau des crimes et des malheurs

Among the illusions which have invested our civilization is an absolute belief that the solutions to our problems must be a more determined application of rationally organized expertise... The reality is that our problems are largely the product of that application.