From a strictly scientific point of view, history cannot be called a science.

From the viewpoint of tissue culture, the environment for this experiment should be more rigidly defined.

They carried out the captain's order to the letter.

We carried out the captain's order to the letter.

This sees English as a system obeying miles of grammar and sentence structure which have to be learned in detail and applied rigorously.

The following descriptive analysis was derived from over 1500 closely-monitored questionnaires.