Gamaliel quotes:

All my days have I grown up among the Sages and I have found naught better for a man than silence.

Be careful in your relations with the government; for they draw no man close to themselves except for their own interests. They appear as friends when it is to their advantage, but they do not stand by a man in his time of stress.

Leave these men alone! Let them go! For if their purpose or activity is of human origin, it will fail. But if it is from God, you will not be able to stop these men; you will only find yourselves fighting against God.