Furnish an example, stop preaching, stop shielding, don't prevent self-reliance and initiative, allow your children to develop along thier own lines.

Long ago, there was a noble word, liberal, which derives from the word free. Now a strange thing happened to that word. A man named Hitler made it a term of abuse, a matter of suspicion, because those who were not with him were against him, and liberals had no use for Hitler. And then another man named McCarthy cast the same opprobrium on the word. ... We must cherish and honor the word free or it will cease to apply to us.

Curiosity must be kept alive.

When you are genuinely interested in one thing, it will always lead to something else.

I kept praying that I might be able to prevent a repetition of this stupidity called war. I have tried to keep the promise I made to myself, but the progress that the world is making toward peace seems like the crawling of a little child, very halting and slow.

In the long run there is no more exhilarating experience than to determine one's position, state it bravely and then act boldly.

talking too much is a far greater social fault than talking too little.