The ignorance of one voter in a democracy impairs the security of all.

Now is the time...for this nation to take a clearly leading role in space achievement, which in many ways may hold the key to our future on Earth.

Tolerance implies no lack of commitment to one's own beliefs. Rather it condemns the oppression or persecution of others.

To be courageous requires no exceptional qualifications, no magic formula, no special combination of time, place, and circumstance. It is an opportunity that sooner or later is presented to us all.

I am talking about genuine peace, the kind of peace that makes life on earth worth living, the kind that enables men and nations to grow and to hope and to build a better life for their children - not merely peace for Americans but peace for all men and women - not merely peace in our time but peace for all time.

Not every child has an equal talent or an equal ability or equal motivation, but they should have the equal right to develop their talent and their ability and their motivation, to make something of themselves.

For without belittling the courage with which men have died, we should not forget those acts of courage with which men have lived.