Fight for your opinions, but do not believe that they contain the whole truth or the only truth.

Fight for your opinions, but do not believe that they contain the whole truth or the only truth.

Opinion has caused more trouble on this little earth than plagues or earthquakes.

Opinion has caused more trouble on this little earth than plagues or earthquakes.

For having lived long, I have experienced many instances of being obliged, by better information or fuller consideration, to change read more

For having lived long, I have experienced many instances of being obliged, by better information or fuller consideration, to change opinions, even on important subjects, which I once thought right but found to be otherwise.

The man who never alters his opinion is like standing water, and breeds reptiles of the mind.

The man who never alters his opinion is like standing water, and breeds reptiles of the mind.

Opinions are like assholes, everybody's got one!

Opinions are like assholes, everybody's got one!

One accurate measurement is worth a thousand expert opinions.

One accurate measurement is worth a thousand expert opinions.

Opinions have vested interests just as men have.

Opinions have vested interests just as men have.

We must always think about things, and we must think about things as they are, not as they are said read more

We must always think about things, and we must think about things as they are, not as they are said to be.

We should be eternally vigilant against attempts to check the expression of opinions that we loathe.

We should be eternally vigilant against attempts to check the expression of opinions that we loathe.