Vince Cable spoke at a fringe meeting in Bournemouth, organised by the local ICAEW.
At the meeting he said that tax avoidance is "deeply corrosive of the ethical basis of taxation".
We all practice tax avoidance, via using personal allowances.
Avoidance is legal and ethical.
Evasion is illegal and unethical.
I hope the ICAEW pointed that out to him?