"Let me remind you of the old maxim: people under suspicion are better moving than at rest, since at rest they may be sitting in the balance without knowing it, being weighed together with their sins"

In this quote, Kafka is reminding us that when we are under suspicion, it is better to keep moving and taking action rather than staying still. This is due to the fact that when we are at rest, we may not understand that we are being evaluated and assessed, just like objects being weighed on a scale. Our actions and choices are constantly being scrutinized, and if we stay still, we may unconsciously be weighed down by our errors and defects. However, by continuously moving and making progress, we can avoid being weighed down by our sins and rather, make every effort towards improvement and redemption.