We know that individual liberty and individual happiness mean nothing unless both are ordered in the sense that one man’s meat is not another man’s poison.
 Franklin D. Roosevelt, Looking Forward (1933). copy citation

Context

“If, in accordance with this principle, we must restrict the operations of the speculator, the manipulator, even the financier, I believe we must accept the restriction as needful, not to hamper individualism, but to protect it. The final term of the high contract was for liberty and the pursuit of happiness. We have [Pg 36] learned a great deal of both in the past century. We know that individual liberty and individual happiness mean nothing unless both are ordered in the sense that one man’s meat is not another man’s poison. We know that the old “rights of personal competency”—the right to read, to think, to speak, to choose and live a mode of life—must be respected at all hazards. We know that liberty to do anything which deprives others of those elemental rights is outside the protection of any compact, and that government in this regard is the maintenance of the balance of justice for all.” source