Integrity simply means not violating one's own identity.

We are confronted with the possibility of a war of such destruction that the whole existence of our nation and of the whole world is at stake. And yet, people know it - people read it in the newspapers, people read that at the first attack, a hundred million Americans might be killed. And yet, they talk about it as if they were talking about something being wrong with the carburetor of their car, perhaps.

. . . freedom to creat and construct, to wonder and to venture. Such freedom requires that the individual be active and responsible, not a slave or a well-fed cog in the machine . . . It is not enough that men are not slaves; if social conditions further the existence of automatons, the result will not be love of life, but love of death.

One cannot be deeply responsive to the world without being saddened very often.

I feel worried, deeply worried, only about one thing - the possibility that we fall... that we cannot avoid an atomic war.

In the sleeping state, instead, one is much more oneself, even if society never ceases to intervene.

Man's biological weakness is the condition of human culture.