“Common sense is not so common.”

Doctors put drugs of which they know little into bodies of which they know less for diseases of which they know nothing at all.

The only way to comprehend what mathematicians mean by Infinity is to contemplate the extent of human stupidity.

Love is a canvas furnished by Nature and embroidered by imagination.

There are truths which are not for all men, nor for all times.

When it is a question of money, everybody is of the same religion.

Opinions have caused more ills than the plague or earthquakes on this little globe of ours.

I have chosen to be happy because it is good for my health.

Doubt is an uncomfortable condition, but certainty is a ridiculous one.

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

Behind every successful man stands a surprised mother-in-law.

If we do not find anything very pleasant, at least we shall find something new.

Every man is a creature of the age in which he lives and few are able to raise themselves above the ideas of the time.

Don’t think money does everything or you are going to end up doing everything for money.

Madness is to think of too many things in succession too fast, or of one thing too exclusively.

Is politics nothing other than the art of deliberately lying?

To succeed in the world it is not enough to be stupid – one must also be polite.

Uncommon men require no common trust; give him but scope and he will set the bounds.

Selfish interest is one of the most common obstructions to the advance of truth.

The best that we can do is to be kindly and helpful toward our friends and fellow passengers who are clinging to the same speck of dirt while we are drifting side by side to our common doom.

The art of being happy lies in the power of extracting happiness from common things.

I am for America because America is for the common people.

Excellence is to do a common thing in an uncommon way.

Group discipline produces a unified effort toward a common goal.

Put the uncommon effort into the common task… make it large by doing it in a great way.