What is the test for determining whether a change in a law is an attempt to violate that law?

As was said by this court in Collier v. Lindley, 203 Cal. 641, 650-651, 266 P. 526, 529: 'The trend of modern authority has been toward the upholding of trusts which have for their object the creation of a more enlightened public opinion, with a consequent change in laws having to do with human relations and rights in a republic such as ours * * *. To hold that a change in a law is in effect an attempt to violate that law would discourage improvement in legislation and tnd to compel us to continue indefinitely to live under laws designed for an entirely different state of society. Such view is opposed to every principle of our government based on the theory that it is a government 'of the people, by the people and for the people,' and fails to recognize the right of those who make the laws to change them at their pleasure when circumstances seem to require. With the wisdom of the proposed change the courts are not concerned.'