Oliver Wendell Holmes, Jr., Engel v. O'Malley — Opinion of the Court
“ It is true, no doubt, that where size is not an index to an admitted evil, the law cannot discriminate between the great and small. But in this case size is an index. Where the average amount of each sum received is not less than $500, we know that we have not before us the class of ignorant and helpless depositors, largely foreign, whom the law seeks to protect. ”
