Henry Billings Brown,
Pollock v. Farmers' Loan Trust Company Hyde…
“ Congress ought never to legislate, in raising the revenues of the government, in fear that important laws like this shall encounter the veto of this court through a change in its opinion, or be crippled in great political crises by its inability to raise a revenue for immediate use. Twice in the history of this country such exigencies have arisen, and twice has congress called upon the patriotism of its citizens to respond to the imposition of an income tax,-once in the throes of civil war, and once in the exigency of a financial panic, scarcely less disastrous. ”
