自由有三种形式：政治自由，即个人有发表言论和结社的自由；宗教自由，意味着可以自由崇拜任何信仰；还有经济自由，主要体现在个人财产的所有权上。
Freedom comes in three varieties: political liberty, which takes the form of individual rights to free speech and association; religious liberty, which implies freedom of worship for all faiths; and economic liberty, which is embodied in the right to own property.