Freedom of expression is the well-spring of our civilization... The history of civilization is in considerable measure the displacement of error which once held sway as official truth by beliefs which in turn have yielded to other truths. Therefore the liberty of man to search for truth ought not to be fettered, no matter what orthodoxies he may challenge.

There can be no security where there is fear.

Certainly the affirmative pursuit of one's convictions about the ultimate mystery of the universe and man's relation to it is placed beyond the reach of law. Government may not interfere with organized or individual expressions of belief or disbelief. Propagation of belief - or even of disbelief - in the supernatural is protected, whether in church or chapel, mosque or synagogue, tabernacle or meeting-house.

The ultimate foundation of a free society is the binding tie of cohesive sentiment.

It is a wise man who said that there is no greater inequality than the equal treatment of unequals.

If one man can be allowed to determine for himself what is law, every man can. That means first chaos, then tyranny. Legal process is an essential part of the democratic process.

The words of the Constitution... are so unrestricted by their intrinsic meaning or by their history or by tradition or by prior decisions that they leave the individual Justice free, if indeed they do not compel him, to gather meaning not from reading the Constitution but from reading life.