Art is long, life short, judgment difficult, opportunity transient.

Art is long, life short, judgment difficult, opportunity transient. To act is easy, to think is hard; to act according to our thought is troublesome.

Life is short, art long, opportunity fleeting, experience treacherous, judgment difficult

Our senses don't deceive us: our judgment does

The senses do not deceive us, but the judgment does.

Yet he who grasps the moment's gift, He is the proper man. [Ger., Der den Augenblick ergreift, Das ist der rechte Mann.]