No lawyer is obliged to act either as adviser or advocate for every person who may wish to become his client. He has the right to decline employment. Every lawyer upon his own responsibility must decide what business he will accept as counsel, what causes he will bring into Court for plaintiffs, what cases he will contest in Court for defendants. The responsibility for advising questionable transactions, for bringing questionable suits, for urging questionable defenses, is the lawyer's responsibility. He cannot escape it by urging as an excuse that he is only following his client's instructions.