Keep strong, if possible. In any case, keep cool. Have unlimited patience. Never corner an opponent, and always assist him to save face - B. H. Liddell Hart

Quote

Keep strong, if possible. In any case, keep cool. Have unlimited patience. Never corner an opponent, and always assist him to save face. Put yourself in his shoes—so as to see things through his eyes. Avoid self-righteousness like the devil—nothing is so self-blinding.

Author

Strategist B. H. Liddell Hart, on nuclear strategy.Kennedy used this quote to deal with the Cuban Missile crises which potentially could have brought a nuclear holocaust to humankind.

Reference

Stillness is the key - Ryan Holiday