In James Joyce's "A Portrait of the Artist as a Young Man," the quote "Time is, time was, but time shall be no more" reflects the concept of time's fluidity and its impact on human experience. It suggests a recognition that the present moment exists alongside memories of the past, yet hints at an inevitable end to time as we know it. This duality speaks to the transient nature of life and the way individuals grapple with their own existence through the passage of time.

This contemplation of time resonates with the central themes of Joyce's novel, where the protagonist navigates his identity and artistic ambitions. The quote encapsulates a sense of urgency and the importance of living authentically in the present, as both past and future are beyond one’s control. Ultimately, it underscores the significance of self-discovery and the artistic journey in capturing the essence of life before time inevitably eludes our grasp.