Analyze the tweet "#PiersGough on thoroughly lively and imaginative developers—“Sager have always challenged us to do better and do better.” @IslingtonSq" and indicate which emotions from the list (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) are expressed. If no emotions are found, answer with "neutral or no emotion".
joy, optimism, trust