Much of the liberal tradition in political thought has shared Isaiah B
erlin's fears about all positive concepts of liberty. Indeed these fea
rs seem justified in relation to Marx and Hegel. However, the danger o
f a tyrannical paternalism derives not from the concept of positive fr
eedom itself but from the reification of the self associated with rati
onalism. Spinoza's monism and his notion of individual conatus make an
y rationalist reification of the self implausible. Consequently his ac
count of positive freedom enriches rather than undermines the commitme
nt to negative liberty, whilst also helping to explain his ability to
reconcile liberal toleration with the strikingly Hobbesian premisses o
f his political philosophy.