We shall have lost something vital and beyond price on the day when the state denies us the right to resort to force.

... fear breeds repression; that repression breeds hate; that hate menaces stable government; that the path of safety lies in the opportunity to discuss freely supposed grievances and proposed remedies; and that the fitting remedy for evil counsels is good ones.

The greatest dangers to liberty lurk in the insidious encroachment by men of zeal, well meaning but without understanding.

In differentiation, not in uniformity, lies the path of progress.

No one can really pull you up very high - you lose your grip on the rope. But on your own two feet you can climb mountains.

Most of the things worth doing in the world had been declared impossible before they were done.

There are no shortcuts in evolution.