in 1-2 sentences, develop an argument to support the concept of judicial restraint in the supreme court's decisions of Plessy V. Ferguson and the concept of judicial activism in the supreme court's decision of Brown v. Board of Education.

Judicial restraint is justified in the case of Plessy v. Ferguson as it upholds the principle of deferring to legislative authority, while judicial activism in the decision of Brown v. Board of Education is necessary to ensure equal protection of rights and correct a longstanding constitutional injustice.