Es + adj. + inf.Impersonal expressions may also be used to make generalizations about everyone rather than specific people. To express this type of generalization, simply use an infinitive (rather than que followed by the subjunctive). Compare the following pairs of sentences. The first in each pair is about specific people while the second is a pure generalization that could apply to anyone.
Es importante que entiendas las responsabilidades del matrimonio.It's important that you understand the responsibilities of marriage.
Es importante entender las responsabilidades del matrimonio.It's important to understand the responsibilities of marriage.