Quote

George Washington·1783

Be courteous to all, but intimate with few, and let those few be well tried before you give them your confidence; true friendship is a plant of slow growth, and must undergo and withstand the shocks of adversity before it is entitled to the appellation.

Baltasar Gracián·1647

Know how to refuse. One ought not to give way in everything nor to everybody.

Theodore Roosevelt·1903

Let us speak courteously, deal fairly, and keep ourselves armed and ready.