Theodore Roosevelt Quote

Let us make it evident that we intend to do justice. Then let us make it equally evident that we will not tolerate injustice being done to us in return. Let us further make it evident that we use no words which we are not prepared to back up with deeds, and that while our speech is always moderate, we are ready and willing to make it good. Such an attitude will be the surest possible guarantee of that self-respecting peace, the attainment of which is and must ever be the prime aim of a self-governing people.

The Strenuous Life: Essays and Addresses (1900) - National Duties