When a tenant for life holds the land without impeachment of waste, he is of course dispunishable for waste whether willful or otherwise. But still this right must not be wantonly abused so as to destroy the estate, and he will be enjoined from committing malicious waste. The effect of the insertion of this clause in a lease for life is to give the tenant the right to cut timber on the estate, without making himself thereby liable to an action for waste.