“The negative cautions of science are never popular.”

The ability to learn is older as it is also more widespread than is the ability to teach.

We end up with the contradictory picture of a society that appears to throw its doors wide open to women, but translates her every step towards success as having been damaging.

No matter how many communes anybody invents, the family always creeps back.

We won’t have a society if we destroy the environment.

I have spent most of my life studying the lives of other peoples – faraway peoples – so that Americans might better understand themselves.

We must recognize that beneath the superficial classifications of sex and race the same potentialities exist, recurring generation after generation, only to perish because society has no place for them.

You just have to learn not to care about the dusty mites under the beds.

No country that permits firearms to be widely and randomly distributed among its population – especially firearms that are capable of wounding and killing human beings – can expect to escape violence, and a great deal of violence.

No one will live all his life in the world into which he was born and no one will die in the world in which he worked in his maturity.

The solution to adult problems tomorrow depends on large measure upon how our children grow up today.

I suddenly realized that through no act of my own I had become biologically related to a new human being.

Instead of being presented with stereotypes by age, sex, color, class, or religion, children must have the opportunity to learn that within each range, some people are loathsome and some are delightful.

Today’s children are the first generation to grow up in a world that has the power to destroy itself.

Children must be taught how to think, not what to think.

I had my father’s mind, but he had his mother’s mind. Fortunately, his mother lived with us and so I early realized that intellectual abilities of the kind I shared with my father and grandmother were not sex-linked.

You can no longer save your family, tribe or nation. You can only save the whole world.

Everybody knows if you are too careful you are so occupied in being careful that you are sure to stumble over something.

He that is overcautious will accomplish little.

He that is over-cautious will accomplish but very little.

Caution is the confidential agent of selfishness.

Circumspection and caution are part of wisdom.

If you want to gather honey, don’t kick over the beehive.

A little caution outflanks a large cavalry.

You can’t test courage cautiously.