I learned that we should recognize the difference of culture and understand the each characteristic.

>>>I learned that we should recognize culture differences and understand their characteristics.

we should not differentiate people by the reason that they are different from us.

>>>We should not exclude/ discriminate the people because they are different from us. (Always start your sentence with a capital letter.)

we shoul respect one another irrespective of gender, age, race,religion,status, etc.

>>>We should respect one another regardless of gender, age, race, religion, status, etc.

I think that people are having trouble in settling their conflict of interest because they don't admit the diversity.

>>>I think, people are having trouble in settling their conflict of interest because they don't admit diversity.

My office are emphasizing the diversity these days. Various kinds of people are working at office.

>>>My office is emphasizing diversity these days because there are various people work in the office.

For that reason, understanding and application of diversity are becoming our important issue.

>>>For that reason, uderstanding and application of diversity are becoming our important issues.