By themselves example sentences

These activities, by themselves, do not produce a good but they are an aid or a support for the production process.Charges do not flow in a copper wire by themselves, just as water in a perfectly horizontal tube does not flow.But legal-constitutional changes by themselves cannot overcome challenges to democracy.Children with SAD may have difficulty being in a room by themselves, going to school alone, are fearful of entering new situations, and cling to and shadow their parents' every move.Manic episodes rarely appear by themselves; they usually alternate with depression.They levied taxes on traders, artisans and articles of trade and sometimes donated the right to collect these taxes to local temples, which had been built by themselves or by rich merchants.It is also interesting to note that while shoot apices modify themselves into flowering apices prior to flowering, they (i.e., shoot apices of plants) by themselves cannot percieve photoperiods.