In theory, there is no difference between theory and practice. But, in practice, there is.
Putting ideas into practice is difficult.
Your words are supposed to correspond to your actions, but that is not easy to put into practice.
You can put into practice the plan you thought up.
Many things are easy to talk about, but difficult to actually carry out.
An efficient FBI agent does not make any bones about carrying out his duties.
It is one thing to promise, and another to perform.
It is one thing to promise, and another to perform.
Granting that the aim is right, how will you carry out the plan?
Soldiers must carry out their orders.
She tried to carry out her plan to save money.
She will carry out her plan, regardless of expense.
No sooner had the idea occurred to her than she put it into action.
She thought the plan was fine but impractical.
They carried out the captain's order to the letter.
They suggested that we should put the plan into practice right now.
They carried out the project.
They hastened to execute the plan.
In the teeth of their strong opposition, we carried out our plan.
He carried out the plan he had made in detail.