I Introduction On a purely moral or emotive level, concept of sentence enhancement for crimes motivated by racial or religious hatred(1) possesses substantial appeal to many. Racial and religious prejudice clearly runs counter to our nation's underlying normative tradition,(2) and it therefore seems perfectly appropriate for our government to take steps designed to eradicate this blight on national commitment to equality. Moreover, to extent that such governmental attempts are confined to enhancement of sentences for conduct that is already criminalized, one might assume, not unreasonably, that competing free speech concerns implicated by laws that directly penalize so-called hate speech(3) are rendered irrelevant. One does not, after all, have a constitutional right to commit murder, rape, or assault. Closer examination reveals, however, that sentencing enhancement laws actually implicate core notions of free speech theory. For such laws threaten fundamental ground rules concerning relationship between individual and government that inhere in American political theory of which protection of free expression is a central element. Also of possible relevance to constitutionality of sentencing enhancement laws, purely from a doctrinal perspective, is Supreme Court's recent decision in R.A.V. v. City of St. Paul.(4) There, Court unanimously held unconstitutional an ordinance that provided: Whoever places on public or private property a symbol, object, appellation, characterization or graffiti, including, but not limited to a burning cross or Nazi swastika, which one knows or has reasonable grounds to know arouses anger, alarm or resentment in others on basis of race, color, creed, religion or gender commits disorderly conduct and shall be guilty of a misdemeanor.(5) A majority of Court, in an opinion by Justice Scalia, rejected argument that ordinance regulated only unprotected fighting words.(6) Noting that the ordinance goes even beyond mere content discrimination to actual viewpoint discrimination,(7) Justice Scalia reasoned that government cannot provide advantages to one side of a debate.(8) Although R.A.V. may be distinguishable from sentencing enhancement question because, unlike sentencing enhancement, expression was involved on at least a technical level in R.A.V., it is arguable that Justice Scalia's logic extends well beyond its factual context.(9) In light of widespread attention that sentencing enhancement laws are currently receiving,(10) it is appropriate to explore constitutional issues to which such laws give rise. In undertaking this exploration, however, it soon becomes apparent that a constitutional analysis of sentencing enhancement laws actually triggers a far more profound examination of fundamental theoretical underpinnings of free speech theory. My position is that whether one chooses to view it as a catalyst or as a fundamental element, protection of freedom of thought is essential to free speech right --that if government is permitted to invade sanctity of individual's private social and political attitudes, right of free speech is rendered basically meaningless. Ironically, then, one of greatest threats to freedom of expression derives from governmental restrictions on something other than classic communicative activities. If one accepts essential nature of freedom-of-thought postulate, constitutional implications for sentencing enhancement laws should be clear. Such laws criminalize no conduct that had not previously been made criminal. All they do is punish holding of political or social attitudes that government deems offensive or unacceptable. Hence, these laws represent a serious threat to values of free expression, despite fact that they fail to penalize directly any communicative activity. The first section of this article examines centrality of freedom of thought to underlying theory of free expression. …