Human race cannot exist without mutual trust. People need to trust one another so that the whole human race can achieve much greater things. No single person in this world can achieve everything he wants without the help of others. For everything a person might have achieved, he would have definitely used the help of others like his friends, relatives, teachers etc.
Marriages work only when the individuals involved in the relationship trust each other. Companies function based on the trust employers have on their employees that they would do their work correctly. Team sports like soccer, baseball and cricket are impossible without trust and dependence.
If, for any reason, you find it difficult to trust other people in this world, then you may want to check out some quotes on trust given in the website finestquotes.com. Most of the quotes are written by great people. Those quotes on trust reiterate the fact that man cannot exist without trust.